122222222200012 has 12 divisors (see below), whose sum is σ = 233333333291016. Its totient is φ = 55555555545440.

The previous prime is 122222222200009. The next prime is 122222222200021. The reversal of 122222222200012 is 210002222222221.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1388888888593 + ... + 1388888888680.

It is an arithmetic number, because the mean of its divisors is an integer number (19444444440918).

Almost surely, 2^{122222222200012} is an apocalyptic number.

It is an amenable number.

122222222200012 is a deficient number, since it is larger than the sum of its proper divisors (111111111091004).

122222222200012 is a wasteful number, since it uses less digits than its factorization.

122222222200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777777777288 (or 2777777777286 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 122222222200012 its reverse (210002222222221), we get a palindrome (332224444422233).

The spelling of 122222222200012 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred thousand, twelve".