102111201022110 has 64 divisors (see below), whose sum is σ = 280614012125184. Its totient is φ = 23294905171200.

The previous prime is 102111201022109. The next prime is 102111201022139. The reversal of 102111201022110 is 11220102111201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102111201022110.

It is a congruent number.

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, 466535326 + ... + 466754145.

It is an arithmetic number, because the mean of its divisors is an integer number (4384593939456).

Almost surely, 2^{102111201022110} is an apocalyptic number.

102111201022110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111201022110 is an abundant number, since it is smaller than the sum of its proper divisors (178502811103074).

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

102111201022110 is a wasteful number, since it uses less digits than its factorization.

102111201022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933290009.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102111201022110 its reverse (11220102111201), we get a palindrome (113331303133311).

The spelling of 102111201022110 in words is "one hundred two trillion, one hundred eleven billion, two hundred one million, twenty-two thousand, one hundred ten".