102111220201110 has 32 divisors (see below), whose sum is σ = 245073871268352. Its totient is φ = 27228887299680.

The previous prime is 102111220201097. The next prime is 102111220201213. The reversal of 102111220201110 is 11102022111201.

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 102111220201110.

It is a congruent number.

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, 47136804 + ... + 49255463.

It is an arithmetic number, because the mean of its divisors is an integer number (7658558477136).

Almost surely, 2^{102111220201110} is an apocalyptic number.

102111220201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111220201110 is an abundant number, since it is smaller than the sum of its proper divisors (142962651067242).

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

102111220201110 is a wasteful number, since it uses less digits than its factorization.

102111220201110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96427588.

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

Adding to 102111220201110 its reverse (11102022111201), we get a palindrome (113213242312311).

The spelling of 102111220201110 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty million, two hundred one thousand, one hundred ten".