122122122222212 has 12 divisors (see below), whose sum is σ = 244244244444480. Its totient is φ = 52338052380936.

The previous prime is 122122122222173. The next prime is 122122122222251. The reversal of 122122122222212 is 212222221221221.

It is an interprime number because it is at equal distance from previous prime (122122122222173) and next prime (122122122222251).

122122122222212 is an admirable number.

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, 2180752182512 + ... + 2180752182567.

It is an arithmetic number, because the mean of its divisors is an integer number (20353687037040).

Almost surely, 2^{122122122222212} is an apocalyptic number.

It is an amenable number.

122122122222212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122122122222212 is a wasteful number, since it uses less digits than its factorization.

122122122222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361504365090 (or 4361504365088 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

Adding to 122122122222212 its reverse (212222221221221), we get a palindrome (334344343443433).

The spelling of 122122122222212 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".