12900122 has 16 divisors (see below), whose sum is σ = 19780200. Its totient is φ = 6308352.

The previous prime is 12900103. The next prime is 12900131. The reversal of 12900122 is 22100921.

12900122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9728161 + 3171961 = 3119^2 + 1781^2 .

It is a super-2 number, since 2×12900122² = 332826295229768, 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 12900122.

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, 21458 + ... + 22050.

Almost surely, 2^12900122 is an apocalyptic number.

12900122 is a deficient number, since it is larger than the sum of its proper divisors (6880078).

12900122 is a wasteful number, since it uses less digits than its factorization.

12900122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12900122 is about 3591.6739829779. The cubic root of 12900122 is about 234.5297492275.

The spelling of 12900122 in words is "twelve million, nine hundred thousand, one hundred twenty-two".