20122222012210 has 64 divisors (see below), whose sum is σ = 36704777931360. Its totient is φ = 7941881364480.

The previous prime is 20122222012199. The next prime is 20122222012219. The reversal of 20122222012210 is 1221022222102.

It can be written as a sum of positive squares in 16 ways, for example, as 3650694241041 + 16471527771169 = 1910679^2 + 4058513^2 .

It is a super-2 number, since 2×20122222012210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20122222012219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225518086 + ... + 225607294.

Almost surely, 2^{20122222012210} is an apocalyptic number.

20122222012210 is a deficient number, since it is larger than the sum of its proper divisors (16582555919150).

20122222012210 is a wasteful number, since it uses less digits than its factorization.

20122222012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90223.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20122222012210 its reverse (1221022222102), we get a palindrome (21343244234312).

The spelling of 20122222012210 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-two million, twelve thousand, two hundred ten".