102011221120 has 64 divisors (see below), whose sum is σ = 246957667200. Its totient is φ = 40287955968.

The previous prime is 102011221099. The next prime is 102011221163. The reversal of 102011221120 is 21122110201.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 102011221120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958254 + ... + 1059373.

It is an arithmetic number, because the mean of its divisors is an integer number (3858713550).

Almost surely, 2^102011221120 is an apocalyptic number.

102011221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011221120 is an abundant number, since it is smaller than the sum of its proper divisors (144946446080).

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

102011221120 is an equidigital number, since it uses as much as digits as its factorization.

102011221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017725 (or 2017713 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102011221120 its reverse (21122110201), we get a palindrome (123133331321).

It can be divided in two parts, 10201 and 1221120, that added together give a palindrome (1231321).

The spelling of 102011221120 in words is "one hundred two billion, eleven million, two hundred twenty-one thousand, one hundred twenty".