120656217000 has 128 divisors (see below), whose sum is σ = 410670000000. Its totient is φ = 29249984000.

The previous prime is 120656216951. The next prime is 120656217007. The reversal of 120656217000 is 712656021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (120656217007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1795125 + ... + 1861124.

It is an arithmetic number, because the mean of its divisors is an integer number (3208359375).

Almost surely, 2^120656217000 is an apocalyptic number.

120656217000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120656217000 is an abundant number, since it is smaller than the sum of its proper divisors (290013783000).

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

120656217000 is a wasteful number, since it uses less digits than its factorization.

120656217000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656284 (or 3656270 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 120656217000 in words is "one hundred twenty billion, six hundred fifty-six million, two hundred seventeen thousand".