102110111211 has 16 divisors (see below), whose sum is σ = 136643664384. Its totient is φ = 67825421664.

The previous prime is 102110111177. The next prime is 102110111221. The reversal of 102110111211 is 112111011201.

It is not a de Polignac number, because 102110111211 - 2⁹ = 102110110699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102110111221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886060 + ... + 994646.

It is an arithmetic number, because the mean of its divisors is an integer number (8540229024).

Almost surely, 2^102110111211 is an apocalyptic number.

102110111211 is a deficient number, since it is larger than the sum of its proper divisors (34533553173).

102110111211 is a wasteful number, since it uses less digits than its factorization.

102110111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109730.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102110111211 its reverse (112111011201), we get a palindrome (214221122412).

The spelling of 102110111211 in words is "one hundred two billion, one hundred ten million, one hundred eleven thousand, two hundred eleven".