220221210112122 has 32 divisors (see below), whose sum is σ = 440909198372160. Its totient is φ = 73329275295360.

The previous prime is 220221210112117. The next prime is 220221210112129. The reversal of 220221210112122 is 221211012122022.

It is a super-2 number, since 2×220221210112122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220221210112129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890346204 + ... + 890593512.

It is an arithmetic number, because the mean of its divisors is an integer number (13778412449130).

Almost surely, 2^{220221210112122} is an apocalyptic number.

220221210112122 is an abundant number, since it is smaller than the sum of its proper divisors (220687988260038).

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

220221210112122 is a wasteful number, since it uses less digits than its factorization.

220221210112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403998.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220221210112122 its reverse (221211012122022), we get a palindrome (441432222234144).

The spelling of 220221210112122 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-two".