120631620220 has 96 divisors (see below), whose sum is σ = 275944390848. Its totient is φ = 44111941632.

The previous prime is 120631620211. The next prime is 120631620269. The reversal of 120631620220 is 22026136021.

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, 7703719 + ... + 7719361.

It is an arithmetic number, because the mean of its divisors is an integer number (2874420738).

Almost surely, 2^120631620220 is an apocalyptic number.

120631620220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120631620220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137972195424).

120631620220 is an abundant number, since it is smaller than the sum of its proper divisors (155312770628).

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

120631620220 is a wasteful number, since it uses less digits than its factorization.

120631620220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16319 (or 16317 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 120631620220 its reverse (22026136021), we get a palindrome (142657756241).

The spelling of 120631620220 in words is "one hundred twenty billion, six hundred thirty-one million, six hundred twenty thousand, two hundred twenty".