102102111210210 has 32 divisors (see below), whose sum is σ = 245046808872000. Its totient is φ = 27227036104128.

The previous prime is 102102111210193. The next prime is 102102111210221. The reversal of 102102111210210 is 12012111201201.

It is a happy number.

It is a super-2 number, since 2×102102111210210² (a number of 29 digits) contains 22 as substring.

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 102102111210210.

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, 7781277 + ... + 16271216.

It is an arithmetic number, because the mean of its divisors is an integer number (7657712777250).

Almost surely, 2^{102102111210210} is an apocalyptic number.

102102111210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102111210210 is an abundant number, since it is smaller than the sum of its proper divisors (142944697661790).

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

102102111210210 is a wasteful number, since it uses less digits than its factorization.

102102111210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24194002.

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

Adding to 102102111210210 its reverse (12012111201201), we get a palindrome (114114222411411).

Subtracting from 102102111210210 its reverse (12012111201201), we obtain a palindrome (90090000009009).

The spelling of 102102111210210 in words is "one hundred two trillion, one hundred two billion, one hundred eleven million, two hundred ten thousand, two hundred ten".