22012929 has 6 divisors (see below), whose sum is σ = 31796466. Its totient is φ = 14675280.

The previous prime is 22012927. The next prime is 22012933. The reversal of 22012929 is 92921022.

It can be written as a sum of positive squares in only one way, i.e., 15586704 + 6426225 = 3948^2 + 2535^2 .

It is not a de Polignac number, because 22012929 - 2¹ = 22012927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012927) by changing a digit.

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, 1222932 + ... + 1222949.

It is an arithmetic number, because the mean of its divisors is an integer number (5299411).

Almost surely, 2^22012929 is an apocalyptic number.

It is an amenable number.

22012929 is a deficient number, since it is larger than the sum of its proper divisors (9783537).

22012929 is a wasteful number, since it uses less digits than its factorization.

22012929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445887 (or 2445884 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22012929 is about 4691.7937934227. The cubic root of 22012929 is about 280.2588125687.

The spelling of 22012929 in words is "twenty-two million, twelve thousand, nine hundred twenty-nine".