102102044212 has 18 divisors (see below), whose sum is σ = 207850590402. Its totient is φ = 43758018864.

The previous prime is 102102044203. The next prime is 102102044221. The reversal of 102102044212 is 212440201201.

It is an interprime number because it is at equal distance from previous prime (102102044203) and next prime (102102044221).

It can be written as a sum of positive squares in only one way, i.e., 74597811876 + 27504232336 = 273126^2 + 165844^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102102044212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260464203 + ... + 260464594.

Almost surely, 2^102102044212 is an apocalyptic number.

It is an amenable number.

102102044212 is an abundant number, since it is smaller than the sum of its proper divisors (105748546190).

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

102102044212 is a wasteful number, since it uses less digits than its factorization.

102102044212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520928815 (or 520928806 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102102044212 its reverse (212440201201), we get a palindrome (314542245413).

It can be divided in two parts, 10210204 and 4212, that added together give a square (10214416 = 3196²).

The spelling of 102102044212 in words is "one hundred two billion, one hundred two million, forty-four thousand, two hundred twelve".