120010021992 has 384 divisors, whose sum is σ = 397896744960. Its totient is φ = 31953761280.

The previous prime is 120010021991. The next prime is 120010022017. The reversal of 120010021992 is 299120010021.

It is not an unprimeable number, because it can be changed into a prime (120010021991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49042513 + ... + 49044959.

It is an arithmetic number, because the mean of its divisors is an integer number (1036189440).

Almost surely, 2^120010021992 is an apocalyptic number.

120010021992 is a gapful number since it is divisible by the number (12) 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 120010021992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198948372480).

120010021992 is an abundant number, since it is smaller than the sum of its proper divisors (277886722968).

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

120010021992 is a wasteful number, since it uses less digits than its factorization.

120010021992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 120010021992 in words is "one hundred twenty billion, ten million, twenty-one thousand, nine hundred ninety-two".