120010021220 has 48 divisors (see below), whose sum is σ = 253228550400. Its totient is φ = 47774254080.

The previous prime is 120010021199. The next prime is 120010021231. The reversal of 120010021220 is 22120010021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9022775 + ... + 9036065.

It is an arithmetic number, because the mean of its divisors is an integer number (5275594800).

Almost surely, 2^120010021220 is an apocalyptic number.

120010021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120010021220 is an abundant number, since it is smaller than the sum of its proper divisors (133218529180).

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

120010021220 is a wasteful number, since it uses less digits than its factorization.

120010021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15428 (or 15426 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120010021220 its reverse (22120010021), we get a palindrome (142130031241).

The spelling of 120010021220 in words is "one hundred twenty billion, ten million, twenty-one thousand, two hundred twenty".