122122211111212 has 12 divisors (see below), whose sum is σ = 230153397863536. Its totient is φ = 56364097435920.

The previous prime is 122122211111191. The next prime is 122122211111293. The reversal of 122122211111212 is 212111112221221.

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 3 ways as a sum of consecutive naturals, for example, 1174252029864 + ... + 1174252029967.

Almost surely, 2^{122122211111212} is an apocalyptic number.

It is an amenable number.

122122211111212 is a deficient number, since it is larger than the sum of its proper divisors (108031186752324).

122122211111212 is a wasteful number, since it uses less digits than its factorization.

122122211111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348504059848 (or 2348504059846 counting only the distinct ones).

The product of its digits is 128, while the sum is 22.

Adding to 122122211111212 its reverse (212111112221221), we get a palindrome (334233323332433).

The spelling of 122122211111212 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, two hundred twelve".