22921010 has 16 divisors (see below), whose sum is σ = 47151936. Its totient is φ = 7858608.

The previous prime is 22920983. The next prime is 22921013. The reversal of 22921010 is 1012922.

It is a self number, because there is not a number n which added to its sum of digits gives 22921010.

It is not an unprimeable number, because it can be changed into a prime (22921013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163652 + ... + 163791.

It is an arithmetic number, because the mean of its divisors is an integer number (2946996).

Almost surely, 2^22921010 is an apocalyptic number.

22921010 is an abundant number, since it is smaller than the sum of its proper divisors (24230926).

22921010 is a wasteful number, since it uses less digits than its factorization.

22921010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327457.

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

The square root of 22921010 is about 4787.5891636606. The cubic root of 22921010 is about 284.0607636299.

Adding to 22921010 its reverse (1012922), we get a palindrome (23933932).

The spelling of 22921010 in words is "twenty-two million, nine hundred twenty-one thousand, ten".