MOSCOW, May 30 (RIA Novosti) - Accumulated foreign investment in Russia has exceeded $220 billion, a Russian deputy prime minister said at an international economic conference in Moscow on Friday.

"We expect more foreign investors to come to Russia. So far accumulated foreign investment has exceeded $220 billion," Alexander Zhukov said.

Transport, mineral production, power generation, the social sector and the real estate market have been the major areas for investment, Zhukov said.

The official acknowledged that a lack of protection for intellectual property rights has hampered investment in Russian companies.

He also said investment in infrastructure development in Russia was expected to top $1 trillion by 2020.

"We expect investment in the construction of roads, railroads and airports will exceed $1 trillion," Zhukov said, describing the sums as "huge."

He also said proposals for implementing large-scale projects in infrastructure development were included in a long-term socio-economic development plan up to 2020 which is due to be approved by the end of this summer.