22021010 has 16 divisors (see below), whose sum is σ = 43241472. Its totient is φ = 8007600.

The previous prime is 22021009. The next prime is 22021049. The reversal of 22021010 is 1012022.

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, 99986 + ... + 100205.

It is an arithmetic number, because the mean of its divisors is an integer number (2702592).

Almost surely, 2^22021010 is an apocalyptic number.

22021010 is a deficient number, since it is larger than the sum of its proper divisors (21220462).

22021010 is a wasteful number, since it uses less digits than its factorization.

22021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200209.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 22021010 is about 4692.6548988819. The cubic root of 22021010 is about 280.2931029378.

Adding to 22021010 its reverse (1012022), we get a palindrome (23033032).

The spelling of 22021010 in words is "twenty-two million, twenty-one thousand, ten".