102111121210220 has 96 divisors (see below), whose sum is σ = 234479750400000. Its totient is φ = 37204118477568.

The previous prime is 102111121210213. The next prime is 102111121210289. The reversal of 102111121210220 is 22012121111201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16751120 + ... + 22018679.

It is an arithmetic number, because the mean of its divisors is an integer number (2442497400000).

Almost surely, 2^{102111121210220} is an apocalyptic number.

102111121210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111121210220 is an abundant number, since it is smaller than the sum of its proper divisors (132368629189780).

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

102111121210220 is a wasteful number, since it uses less digits than its factorization.

102111121210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38770095 (or 38770093 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102111121210220 its reverse (22012121111201), we get a palindrome (124123242321421).

The spelling of 102111121210220 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty".