120021221200 has 60 divisors (see below), whose sum is σ = 298294150140. Its totient is φ = 46353018880.

The previous prime is 120021221167. The next prime is 120021221227. The reversal of 120021221200 is 2122120021.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1709987904 + 118311233296 = 41352^2 + 343964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5161729 + ... + 5184928.

It is an arithmetic number, because the mean of its divisors is an integer number (4971569169).

Almost surely, 2^120021221200 is an apocalyptic number.

120021221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021221200 is an abundant number, since it is smaller than the sum of its proper divisors (178272928940).

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

120021221200 is a wasteful number, since it uses less digits than its factorization.

120021221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10346704 (or 10346693 counting only the distinct ones).

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

Adding to 120021221200 its reverse (2122120021), we get a palindrome (122143341221).

The spelling of 120021221200 in words is "one hundred twenty billion, twenty-one million, two hundred twenty-one thousand, two hundred".