12921202 has 12 divisors (see below), whose sum is σ = 22546350. Its totient is φ = 5537616.

The previous prime is 12921179. The next prime is 12921217. The reversal of 12921202 is 20212921.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 25921 = 3591^2 + 161^2 .

It is a super-2 number, since 2×12921202² = 333914922249608, 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 12921202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65827 + ... + 66022.

Almost surely, 2^12921202 is an apocalyptic number.

12921202 is a deficient number, since it is larger than the sum of its proper divisors (9625148).

12921202 is a wasteful number, since it uses less digits than its factorization.

12921202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131865 (or 131858 counting only the distinct ones).

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

The square root of 12921202 is about 3594.6073499062. The cubic root of 12921202 is about 234.6574275195.

The spelling of 12921202 in words is "twelve million, nine hundred twenty-one thousand, two hundred two".