102112122210111 has 12 divisors (see below), whose sum is σ = 158841078993688. Its totient is φ = 62838229052304.

The previous prime is 102112122209927. The next prime is 102112122210113. The reversal of 102112122210111 is 111012221211201.

It is a happy number.

102112122210111 is a `hidden beast` number, since 10 + 211 + 2 + 122 + 210 + 111 = 666.

It is not a de Polignac number, because 102112122210111 - 2⁹ = 102112122209599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112122210113) 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, 436376590525 + ... + 436376590758.

Almost surely, 2^{102112122210111} is an apocalyptic number.

102112122210111 is a deficient number, since it is larger than the sum of its proper divisors (56728956783577).

102112122210111 is a wasteful number, since it uses less digits than its factorization.

102112122210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872753181302 (or 872753181299 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102112122210111 its reverse (111012221211201), we get a palindrome (213124343421312).

The spelling of 102112122210111 in words is "one hundred two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, one hundred eleven".