22111202012210 has 8 divisors (see below), whose sum is σ = 39800163621996. Its totient is φ = 8844480804880.

The previous prime is 22111202012191. The next prime is 22111202012219. The reversal of 22111202012210 is 1221020211122.

It can be written as a sum of positive squares in 2 ways, for example, as 20587880787769 + 1523321224441 = 4537387^2 + 1234229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22111202012219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105560100601 + ... + 1105560100620.

Almost surely, 2^{22111202012210} is an apocalyptic number.

22111202012210 is a deficient number, since it is larger than the sum of its proper divisors (17688961609786).

22111202012210 is a wasteful number, since it uses less digits than its factorization.

22111202012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211120201228.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111202012210 its reverse (1221020211122), we get a palindrome (23332222223332).

The spelling of 22111202012210 in words is "twenty-two trillion, one hundred eleven billion, two hundred two million, twelve thousand, two hundred ten".