212210112112122 has 64 divisors (see below), whose sum is σ = 434424460878720. Its totient is φ = 69082116390144.

The previous prime is 212210112112067. The next prime is 212210112112123. The reversal of 212210112112122 is 221211211012212.

It is not an unprimeable number, because it can be changed into a prime (212210112112123) 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 31 ways as a sum of consecutive naturals, for example, 94439953 + ... + 96660875.

It is an arithmetic number, because the mean of its divisors is an integer number (6787882201230).

Almost surely, 2^{212210112112122} is an apocalyptic number.

212210112112122 is an abundant number, since it is smaller than the sum of its proper divisors (222214348766598).

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

212210112112122 is a wasteful number, since it uses less digits than its factorization.

212210112112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222367.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 212210112112122 its reverse (221211211012212), we get a palindrome (433421323124334).

The spelling of 212210112112122 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-two".