2212917990 has 32 divisors (see below), whose sum is σ = 5313625056. Its totient is φ = 589820160.

The previous prime is 2212917961. The next prime is 2212918013. The reversal of 2212917990 is 997192122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47460 + ... + 81720.

It is an arithmetic number, because the mean of its divisors is an integer number (166050783).

Almost surely, 2^2212917990 is an apocalyptic number.

2212917990 is an abundant number, since it is smaller than the sum of its proper divisors (3100707066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212917990 is a wasteful number, since it uses less digits than its factorization.

2212917990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36424.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 2212917990 is about 47041.6622793030. The cubic root of 2212917990 is about 1303.1320907895.

The spelling of 2212917990 in words is "two billion, two hundred twelve million, nine hundred seventeen thousand, nine hundred ninety".