102100111101212 has 24 divisors (see below), whose sum is σ = 205115918278656. Its totient is φ = 43560969884208.

The previous prime is 102100111101127. The next prime is 102100111101227. The reversal of 102100111101212 is 212101111001201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8175851468 + ... + 8175863955.

It is an arithmetic number, because the mean of its divisors is an integer number (8546496594944).

Almost surely, 2^{102100111101212} is an apocalyptic number.

It is an amenable number.

102100111101212 is an abundant number, since it is smaller than the sum of its proper divisors (103015807177444).

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

102100111101212 is a wasteful number, since it uses less digits than its factorization.

102100111101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16351715657 (or 16351715655 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102100111101212 its reverse (212101111001201), we get a palindrome (314201222102413).

The spelling of 102100111101212 in words is "one hundred two trillion, one hundred billion, one hundred eleven million, one hundred one thousand, two hundred twelve".