120121220200 has 24 divisors (see below), whose sum is σ = 279281837430. Its totient is φ = 48048488000.

The previous prime is 120121220179. The next prime is 120121220251. The reversal of 120121220200 is 2022121021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 115517054884 + 4604165316 = 339878^2 + 67854^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300302851 + ... + 300303250.

Almost surely, 2^120121220200 is an apocalyptic number.

120121220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121220200 is an abundant number, since it is smaller than the sum of its proper divisors (159160617230).

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

120121220200 is a wasteful number, since it uses less digits than its factorization.

120121220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600606117 (or 600606108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120121220200 its reverse (2022121021), we get a palindrome (122143341221).

The spelling of 120121220200 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, two hundred".