120312020220 has 96 divisors (see below), whose sum is σ = 407645457408. Its totient is φ = 25882248192.

The previous prime is 120312020219. The next prime is 120312020233. The reversal of 120312020220 is 22020213021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120312020220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8418072 + ... + 8432351.

It is an arithmetic number, because the mean of its divisors is an integer number (4246306848).

Almost surely, 2^120312020220 is an apocalyptic number.

120312020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120312020220 is an abundant number, since it is smaller than the sum of its proper divisors (287333437188).

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

120312020220 is a wasteful number, since it uses less digits than its factorization.

120312020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16850459 (or 16850457 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 120312020220 its reverse (22020213021), we get a palindrome (142332233241).

The spelling of 120312020220 in words is "one hundred twenty billion, three hundred twelve million, twenty thousand, two hundred twenty".