102111101211211 has 12 divisors (see below), whose sum is σ = 105790097000952. Its totient is φ = 98555994637184.

The previous prime is 102111101211149. The next prime is 102111101211293. The reversal of 102111101211211 is 112112101111201.

It is not a de Polignac number, because 102111101211211 - 2³⁵ = 102076741472843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102111101211311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18519145 + ... + 23391898.

It is an arithmetic number, because the mean of its divisors is an integer number (8815841416746).

Almost surely, 2^{102111101211211} is an apocalyptic number.

102111101211211 is a deficient number, since it is larger than the sum of its proper divisors (3678995789741).

102111101211211 is an equidigital number, since it uses as much as digits as its factorization.

102111101211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41913998 (or 41913969 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 102111101211211 its reverse (112112101111201), we get a palindrome (214223202322412).

The spelling of 102111101211211 in words is "one hundred two trillion, one hundred eleven billion, one hundred one million, two hundred eleven thousand, two hundred eleven".