22131320210 has 16 divisors (see below), whose sum is σ = 40382081496. Its totient is φ = 8731260288.

The previous prime is 22131320207. The next prime is 22131320221. The reversal of 22131320210 is 1202313122.

It can be written as a sum of positive squares in 4 ways, for example, as 22091768689 + 39551521 = 148633^2 + 6289^2 .

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, 15157709 + ... + 15159168.

Almost surely, 2^22131320210 is an apocalyptic number.

22131320210 is a deficient number, since it is larger than the sum of its proper divisors (18250761286).

22131320210 is a wasteful number, since it uses less digits than its factorization.

22131320210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30316957.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22131320210 its reverse (1202313122), we get a palindrome (23333633332).

The spelling of 22131320210 in words is "twenty-two billion, one hundred thirty-one million, three hundred twenty thousand, two hundred ten".