122220122112012 has 24 divisors (see below), whose sum is σ = 285189391468800. Its totient is φ = 40738739769616.

The previous prime is 122220122112007. The next prime is 122220122112041. The reversal of 122220122112012 is 210211221022221.

It is a self number, because there is not a number n which added to its sum of digits gives 122220122112012.

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, 162225312 + ... + 162976967.

It is an arithmetic number, because the mean of its divisors is an integer number (11882891311200).

Almost surely, 2^{122220122112012} is an apocalyptic number.

122220122112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122220122112012 is an abundant number, since it is smaller than the sum of its proper divisors (162969269356788).

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

122220122112012 is a wasteful number, since it uses less digits than its factorization.

122220122112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325233605 (or 325233603 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122220122112012 its reverse (210211221022221), we get a palindrome (332431343134233).

The spelling of 122220122112012 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twelve thousand, twelve".