120111020021220 has 24 divisors (see below), whose sum is σ = 336310856059584. Its totient is φ = 32029605338976.

The previous prime is 120111020021207. The next prime is 120111020021329. The reversal of 120111020021220 is 22120020111021.

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 120111020021220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000925166784 + ... + 1000925166903.

It is an arithmetic number, because the mean of its divisors is an integer number (14012952335816).

Almost surely, 2^{120111020021220} is an apocalyptic number.

120111020021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111020021220 is an abundant number, since it is smaller than the sum of its proper divisors (216199836038364).

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

120111020021220 is a wasteful number, since it uses less digits than its factorization.

120111020021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001850333699 (or 2001850333697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120111020021220 its reverse (22120020111021), we get a palindrome (142231040132241).

The spelling of 120111020021220 in words is "one hundred twenty trillion, one hundred eleven billion, twenty million, twenty-one thousand, two hundred twenty".