120210121992 has 64 divisors (see below), whose sum is σ = 312115766400. Its totient is φ = 38548984320.

The previous prime is 120210121991. The next prime is 120210122017. The reversal of 120210121992 is 299121012021.

It is a super-3 number, since 3×120210121992³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (120210121991) 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 15 ways as a sum of consecutive naturals, for example, 681484 + ... + 839547.

It is an arithmetic number, because the mean of its divisors is an integer number (4876808850).

Almost surely, 2^120210121992 is an apocalyptic number.

120210121992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120210121992 is an abundant number, since it is smaller than the sum of its proper divisors (191905644408).

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

120210121992 is a wasteful number, since it uses less digits than its factorization.

120210121992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521166 (or 1521162 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 120210121992 in words is "one hundred twenty billion, two hundred ten million, one hundred twenty-one thousand, nine hundred ninety-two".