102112201221220 has 24 divisors (see below), whose sum is σ = 215053592673024. Its totient is φ = 40727171896416.

The previous prime is 102112201221133. The next prime is 102112201221257. The reversal of 102112201221220 is 22122102211201.

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, 7356779892 + ... + 7356793771.

It is an arithmetic number, because the mean of its divisors is an integer number (8960566361376).

Almost surely, 2^{102112201221220} is an apocalyptic number.

102112201221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102112201221220 is an abundant number, since it is smaller than the sum of its proper divisors (112941391451804).

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

102112201221220 is a wasteful number, since it uses less digits than its factorization.

102112201221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14713574019 (or 14713574017 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102112201221220 its reverse (22122102211201), we get a palindrome (124234303432421).

The spelling of 102112201221220 in words is "one hundred two trillion, one hundred twelve billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty".