121200110202000 has 160 divisors (see below), whose sum is σ = 399836345800320. Its totient is φ = 31568400729600.

The previous prime is 121200110201893. The next prime is 121200110202173. The reversal of 121200110202000 is 202011002121.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 31 ways as a sum of consecutive naturals, for example, 234625935 + ... + 235141934.

It is an arithmetic number, because the mean of its divisors is an integer number (2498977161252).

Almost surely, 2^{121200110202000} is an apocalyptic number.

121200110202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200110202000 is an abundant number, since it is smaller than the sum of its proper divisors (278636235598320).

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

121200110202000 is a wasteful number, since it uses less digits than its factorization.

121200110202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469767938 (or 469767922 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121200110202000 its reverse (202011002121), we get a palindrome (121402121204121).

The spelling of 121200110202000 in words is "one hundred twenty-one trillion, two hundred billion, one hundred ten million, two hundred two thousand".