120110021200 has 240 divisors, whose sum is σ = 317269537200. Its totient is φ = 43429478400.

The previous prime is 120110021179. The next prime is 120110021237. The reversal of 120110021200 is 2120011021.

It can be written as a sum of positive squares in 24 ways, for example, as 120106606096 + 3415104 = 346564^2 + 1848^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50444010 + ... + 50446390.

It is an arithmetic number, because the mean of its divisors is an integer number (1321956405).

Almost surely, 2^120110021200 is an apocalyptic number.

120110021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120110021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158634768600).

120110021200 is an abundant number, since it is smaller than the sum of its proper divisors (197159516000).

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

120110021200 is a wasteful number, since it uses less digits than its factorization.

120110021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120110021200 its reverse (2120011021), we get a palindrome (122230032221).

The spelling of 120110021200 in words is "one hundred twenty billion, one hundred ten million, twenty-one thousand, two hundred".