22031221013210 has 64 divisors (see below), whose sum is σ = 40255421057280. Its totient is φ = 8679584471040.

The previous prime is 22031221013189. The next prime is 22031221013297. The reversal of 22031221013210 is 1231012213022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4280397857 + ... + 4280403003.

It is an arithmetic number, because the mean of its divisors is an integer number (628990954020).

Almost surely, 2^{22031221013210} is an apocalyptic number.

22031221013210 is a deficient number, since it is larger than the sum of its proper divisors (18224200044070).

22031221013210 is a wasteful number, since it uses less digits than its factorization.

22031221013210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22031221013210 its reverse (1231012213022), we get a palindrome (23262233226232).

The spelling of 22031221013210 in words is "twenty-two trillion, thirty-one billion, two hundred twenty-one million, thirteen thousand, two hundred ten".