212122222210122 has 128 divisors (see below), whose sum is σ = 530403506712576. Its totient is φ = 55167279731712.

The previous prime is 212122222210111. The next prime is 212122222210237. The reversal of 212122222210122 is 221012222221212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212122222210092 and 212122222210101.

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, 19628488 + ... + 28452099.

It is an arithmetic number, because the mean of its divisors is an integer number (4143777396192).

Almost surely, 2^{212122222210122} is an apocalyptic number.

212122222210122 is an abundant number, since it is smaller than the sum of its proper divisors (318281284502454).

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

212122222210122 is a wasteful number, since it uses less digits than its factorization.

212122222210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48080820.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 212122222210122 its reverse (221012222221212), we get a palindrome (433134444431334).

The spelling of 212122222210122 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred ten thousand, one hundred twenty-two".