121200102111122 has 32 divisors (see below), whose sum is σ = 189825176616960. Its totient is φ = 57973387832640.

The previous prime is 121200102111113. The next prime is 121200102111149. The reversal of 121200102111122 is 221111201002121.

It is a self number, because there is not a number n which added to its sum of digits gives 121200102111122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25603097 + ... + 29965292.

It is an arithmetic number, because the mean of its divisors is an integer number (5932036769280).

Almost surely, 2^{121200102111122} is an apocalyptic number.

121200102111122 is a deficient number, since it is larger than the sum of its proper divisors (68625074505838).

121200102111122 is a wasteful number, since it uses less digits than its factorization.

121200102111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55568826.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121200102111122 its reverse (221111201002121), we get a palindrome (342311303113243).

The spelling of 121200102111122 in words is "one hundred twenty-one trillion, two hundred billion, one hundred two million, one hundred eleven thousand, one hundred twenty-two".