120021304220 has 24 divisors (see below), whose sum is σ = 254876706000. Its totient is φ = 47469099392.

The previous prime is 120021304213. The next prime is 120021304229. The reversal of 120021304220 is 22403120021.

It is a super-2 number, since 2×120021304220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021304229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33712070 + ... + 33715629.

It is an arithmetic number, because the mean of its divisors is an integer number (10619862750).

Almost surely, 2^120021304220 is an apocalyptic number.

120021304220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021304220 is an abundant number, since it is smaller than the sum of its proper divisors (134855401780).

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

120021304220 is a wasteful number, since it uses less digits than its factorization.

120021304220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67427797 (or 67427795 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 120021304220 its reverse (22403120021), we get a palindrome (142424424241).

The spelling of 120021304220 in words is "one hundred twenty billion, twenty-one million, three hundred four thousand, two hundred twenty".