212900122 has 16 divisors (see below), whose sum is σ = 324002592. Its totient is φ = 104909200.

The previous prime is 212900113. The next prime is 212900131. The reversal of 212900122 is 221009212.

It is an interprime number because it is at equal distance from previous prime (212900113) and next prime (212900131).

It is a super-2 number, since 2×212900122² = 90652923895229768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212900122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43533 + ... + 48175.

It is an arithmetic number, because the mean of its divisors is an integer number (20250162).

Almost surely, 2^212900122 is an apocalyptic number.

212900122 is a deficient number, since it is larger than the sum of its proper divisors (111102470).

212900122 is a wasteful number, since it uses less digits than its factorization.

212900122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 212900122 is about 14591.0973542088. The cubic root of 212900122 is about 597.1159014313.

Adding to 212900122 its reverse (221009212), we get a palindrome (433909334).

The spelling of 212900122 in words is "two hundred twelve million, nine hundred thousand, one hundred twenty-two".