121120021000200 has 96 divisors (see below), whose sum is σ = 375496041715200. Its totient is φ = 32296609762560.

The previous prime is 121120021000123. The next prime is 121120021000211. The reversal of 121120021000200 is 2000120021121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2969914 + ... + 15844886.

It is an arithmetic number, because the mean of its divisors is an integer number (3911417101200).

Almost surely, 2^{121120021000200} is an apocalyptic number.

121120021000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120021000200 is an abundant number, since it is smaller than the sum of its proper divisors (254376020715000).

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

121120021000200 is a wasteful number, since it uses less digits than its factorization.

121120021000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12890671 (or 12890662 counting only the distinct ones).

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

Adding to 121120021000200 its reverse (2000120021121), we get a palindrome (123120141021321).

The spelling of 121120021000200 in words is "one hundred twenty-one trillion, one hundred twenty billion, twenty-one million, two hundred", and thus it is an aban number.