120121121200 has 60 divisors (see below), whose sum is σ = 290863486720. Its totient is φ = 47670094080.

The previous prime is 120121121179. The next prime is 120121121201. The reversal of 120121121200 is 2121121021.

It is not an unprimeable number, because it can be changed into a prime (120121121201) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1131495 + ... + 1233094.

Almost surely, 2^120121121200 is an apocalyptic number.

120121121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121121200 is an abundant number, since it is smaller than the sum of its proper divisors (170742365520).

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

120121121200 is a wasteful number, since it uses less digits than its factorization.

120121121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364734 (or 2364723 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120121121200 its reverse (2121121021), we get a palindrome (122242242221).

The spelling of 120121121200 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred".