102111220201220 has 48 divisors (see below), whose sum is σ = 214859700014400. Its totient is φ = 40763322648960.

The previous prime is 102111220201213. The next prime is 102111220201241. The reversal of 102111220201220 is 22102022111201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614086451 + ... + 614252709.

It is an arithmetic number, because the mean of its divisors is an integer number (4476243750300).

Almost surely, 2^{102111220201220} is an apocalyptic number.

102111220201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111220201220 is an abundant number, since it is smaller than the sum of its proper divisors (112748479813180).

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

102111220201220 is a wasteful number, since it uses less digits than its factorization.

102111220201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227108 (or 227106 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102111220201220 its reverse (22102022111201), we get a palindrome (124213242312421).

The spelling of 102111220201220 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty million, two hundred one thousand, two hundred twenty".