102102212120212 has 12 divisors (see below), whose sum is σ = 178678975224820. Its totient is φ = 51051076341696.

The previous prime is 102102212120171. The next prime is 102102212120261. The reversal of 102102212120212 is 212021212201201.

It can be written as a sum of positive squares in 2 ways, for example, as 7223430270736 + 94878781849476 = 2687644^2 + 9740574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102102212120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490608 + ... + 14367544.

Almost surely, 2^{102102212120212} is an apocalyptic number.

It is an amenable number.

102102212120212 is a deficient number, since it is larger than the sum of its proper divisors (76576763104608).

102102212120212 is a wasteful number, since it uses less digits than its factorization.

102102212120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14859210 (or 14859208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102102212120212 its reverse (212021212201201), we get a palindrome (314123424321413).

The spelling of 102102212120212 in words is "one hundred two trillion, one hundred two billion, two hundred twelve million, one hundred twenty thousand, two hundred twelve".