102112011201111 has 32 divisors (see below), whose sum is σ = 144463009489920. Its totient is φ = 63934913570304.

The previous prime is 102112011201097. The next prime is 102112011201157. The reversal of 102112011201111 is 111102110211201.

It is a de Polignac number, because none of the positive numbers 2^k-102112011201111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112011201311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48340525 + ... + 50408633.

It is an arithmetic number, because the mean of its divisors is an integer number (4514469046560).

Almost surely, 2^{102112011201111} is an apocalyptic number.

102112011201111 is a deficient number, since it is larger than the sum of its proper divisors (42350998288809).

102112011201111 is a wasteful number, since it uses less digits than its factorization.

102112011201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070175.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102112011201111 its reverse (111102110211201), we get a palindrome (213214121412312).

The spelling of 102112011201111 in words is "one hundred two trillion, one hundred twelve billion, eleven million, two hundred one thousand, one hundred eleven".