102111222210210 has 48 divisors (see below), whose sum is σ = 265580821219896. Its totient is φ = 27220259925504.

The previous prime is 102111222210199. The next prime is 102111222210227. The reversal of 102111222210210 is 12012222111201.

102111222210210 is a `hidden beast` number, since 1 + 0 + 21 + 1 + 1 + 222 + 210 + 210 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 67503756948489 + 34607465261721 = 8216067^2 + 5882811^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195557209 + ... + 196078668.

Almost surely, 2^{102111222210210} is an apocalyptic number.

102111222210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111222210210 is an abundant number, since it is smaller than the sum of its proper divisors (163469599009686).

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

102111222210210 is a wasteful number, since it uses less digits than its factorization.

102111222210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391638787 (or 391638784 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102111222210210 its reverse (12012222111201), we get a palindrome (114123444321411).

Subtracting from 102111222210210 its reverse (12012222111201), we obtain a palindrome (90099000099009).

The spelling of 102111222210210 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-two million, two hundred ten thousand, two hundred ten".