110020121992 has 32 divisors (see below), whose sum is σ = 225212011200. Its totient is φ = 49971179200.

The previous prime is 110020121951. The next prime is 110020121999. The reversal of 110020121992 is 299121020011.

It is a self number, because there is not a number n which added to its sum of digits gives 110020121992.

It is not an unprimeable number, because it can be changed into a prime (110020121999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357859 + ... + 590002.

It is an arithmetic number, because the mean of its divisors is an integer number (7037875350).

Almost surely, 2^110020121992 is an apocalyptic number.

It is an amenable number.

110020121992 is an abundant number, since it is smaller than the sum of its proper divisors (115191889208).

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

110020121992 is a wasteful number, since it uses less digits than its factorization.

110020121992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949197 (or 949193 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 110020121992 in words is "one hundred ten billion, twenty million, one hundred twenty-one thousand, nine hundred ninety-two".