122200121222012 has 12 divisors (see below), whose sum is σ = 213850749682416. Its totient is φ = 61099907027040.

The previous prime is 122200121221903. The next prime is 122200121222077. The reversal of 122200121222012 is 210222121002221.

It is a congruent number.

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, 36596393 + ... + 39795680.

It is an arithmetic number, because the mean of its divisors is an integer number (17820895806868).

Almost surely, 2^{122200121222012} is an apocalyptic number.

It is an amenable number.

122200121222012 is a deficient number, since it is larger than the sum of its proper divisors (91650628460404).

122200121222012 is a wasteful number, since it uses less digits than its factorization.

122200121222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76791988 (or 76791986 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122200121222012 its reverse (210222121002221), we get a palindrome (332422242224233).

The spelling of 122200121222012 in words is "one hundred twenty-two trillion, two hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, twelve".