120021120220 has 24 divisors (see below), whose sum is σ = 258856363584. Its totient is φ = 46710922176.

The previous prime is 120021120211. The next prime is 120021120253. The reversal of 120021120220 is 22021120021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120021120220.

It is a congruent number.

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, 81094612 + ... + 81096091.

It is an arithmetic number, because the mean of its divisors is an integer number (10785681816).

Almost surely, 2^120021120220 is an apocalyptic number.

120021120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021120220 is an abundant number, since it is smaller than the sum of its proper divisors (138835243364).

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

120021120220 is a wasteful number, since it uses less digits than its factorization.

120021120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162190749 (or 162190747 counting only the distinct ones).

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

Adding to 120021120220 its reverse (22021120021), we get a palindrome (142042240241).

The spelling of 120021120220 in words is "one hundred twenty billion, twenty-one million, one hundred twenty thousand, two hundred twenty".