120897920022 has 64 divisors (see below), whose sum is σ = 268819430400. Its totient is φ = 35941351680.

The previous prime is 120897919991. The next prime is 120897920023. The reversal of 120897920022 is 220029798021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120897920023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 744754 + ... + 892442.

It is an arithmetic number, because the mean of its divisors is an integer number (4200303600).

Almost surely, 2^120897920022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120897920022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134409715200).

120897920022 is an abundant number, since it is smaller than the sum of its proper divisors (147921510378).

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

120897920022 is a wasteful number, since it uses less digits than its factorization.

120897920022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147941.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 120897920022 in words is "one hundred twenty billion, eight hundred ninety-seven million, nine hundred twenty thousand, twenty-two".