12220121022010 has 64 divisors (see below), whose sum is σ = 24685992864000. Its totient is φ = 4317508615680.

The previous prime is 12220121021989. The next prime is 12220121022029. The reversal of 12220121022010 is 1022012102221.

It is a happy number.

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, 9574635 + ... + 10775614.

It is an arithmetic number, because the mean of its divisors is an integer number (385718638500).

Almost surely, 2^{12220121022010} is an apocalyptic number.

12220121022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220121022010 is an abundant number, since it is smaller than the sum of its proper divisors (12465871841990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220121022010 is a wasteful number, since it uses less digits than its factorization.

12220121022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20350423.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12220121022010 its reverse (1022012102221), we get a palindrome (13242133124231).

The spelling of 12220121022010 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, ten".