102120100202212 has 12 divisors (see below), whose sum is σ = 180479583031356. Its totient is φ = 50554505050400.

The previous prime is 102120100202173. The next prime is 102120100202257. The reversal of 102120100202212 is 212202001021201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99838145545216 + 2281954656996 = 9991904^2 + 1510614^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126386262223 + ... + 126386263030.

It is an arithmetic number, because the mean of its divisors is an integer number (15039965252613).

Almost surely, 2^{102120100202212} is an apocalyptic number.

It is an amenable number.

102120100202212 is a deficient number, since it is larger than the sum of its proper divisors (78359482829144).

102120100202212 is a wasteful number, since it uses less digits than its factorization.

102120100202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252772525358 (or 252772525356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102120100202212 its reverse (212202001021201), we get a palindrome (314322101223413).

The spelling of 102120100202212 in words is "one hundred two trillion, one hundred twenty billion, one hundred million, two hundred two thousand, two hundred twelve".