12122211112122 has 16 divisors (see below), whose sum is σ = 24398845297632. Its totient is φ = 4014999858480.

The previous prime is 12122211112117. The next prime is 12122211112133. The reversal of 12122211112122 is 22121111222121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6434293704 + ... + 6434295587.

It is an arithmetic number, because the mean of its divisors is an integer number (1524927831102).

Almost surely, 2^{12122211112122} is an apocalyptic number.

12122211112122 is an abundant number, since it is smaller than the sum of its proper divisors (12276634185510).

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

12122211112122 is a wasteful number, since it uses less digits than its factorization.

12122211112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12868589453.

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

Adding to 12122211112122 its reverse (22121111222121), we get a palindrome (34243322334243).

The spelling of 12122211112122 in words is "twelve trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-two".