102102111111220 has 24 divisors (see below), whose sum is σ = 233906654546208. Its totient is φ = 37128040404000.

The previous prime is 102102111111193. The next prime is 102102111111241. The reversal of 102102111111220 is 22111111201201.

It is a junction number, because it is equal to n+sod(n) for n = 102102111111194 and 102102111111203.

It is a congruent number.

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, 232050252306 + ... + 232050252745.

It is an arithmetic number, because the mean of its divisors is an integer number (9746110606092).

Almost surely, 2^{102102111111220} is an apocalyptic number.

102102111111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102111111220 is an abundant number, since it is smaller than the sum of its proper divisors (131804543434988).

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

102102111111220 is a wasteful number, since it uses less digits than its factorization.

102102111111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464100505071 (or 464100505069 counting only the distinct ones).

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

Adding to 102102111111220 its reverse (22111111201201), we get a palindrome (124213222312421).

The spelling of 102102111111220 in words is "one hundred two trillion, one hundred two billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty".