212112210101122 has 128 divisors (see below), whose sum is σ = 354137105203200. Its totient is φ = 94883626768896.

The previous prime is 212112210101101. The next prime is 212112210101137. The reversal of 212112210101122 is 221101012211212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 212112210101122.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34195097673 + ... + 34195103875.

It is an arithmetic number, because the mean of its divisors is an integer number (2766696134400).

Almost surely, 2^{212112210101122} is an apocalyptic number.

212112210101122 is a deficient number, since it is larger than the sum of its proper divisors (142024895102078).

212112210101122 is a wasteful number, since it uses less digits than its factorization.

212112210101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9800.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212112210101122 its reverse (221101012211212), we get a palindrome (433213222312334).

The spelling of 212112210101122 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred ten million, one hundred one thousand, one hundred twenty-two".