110020121988 has 72 divisors (see below), whose sum is σ = 302406249600. Its totient is φ = 31036404672.

The previous prime is 110020121951. The next prime is 110020121999. The reversal of 110020121988 is 889121020011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1137783 + ... + 1230686.

It is an arithmetic number, because the mean of its divisors is an integer number (4200086800).

Almost surely, 2^110020121988 is an apocalyptic number.

It is an amenable number.

110020121988 is an abundant number, since it is smaller than the sum of its proper divisors (192386127612).

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

110020121988 is a wasteful number, since it uses less digits than its factorization.

110020121988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368569 (or 2368560 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 33.

Adding to 110020121988 its reverse (889121020011), we get a palindrome (999141141999).

The spelling of 110020121988 in words is "one hundred ten billion, twenty million, one hundred twenty-one thousand, nine hundred eighty-eight".