102100202121212 has 12 divisors (see below), whose sum is σ = 178697247575616. Its totient is φ = 51043845671040.

The previous prime is 102100202121193. The next prime is 102100202121221. The reversal of 102100202121212 is 212121202001201.

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, 1563810668 + ... + 1563875955.

It is an arithmetic number, because the mean of its divisors is an integer number (14891437297968).

Almost surely, 2^{102100202121212} is an apocalyptic number.

It is an amenable number.

102100202121212 is a deficient number, since it is larger than the sum of its proper divisors (76597045454404).

102100202121212 is a wasteful number, since it uses less digits than its factorization.

102100202121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127694788 (or 3127694786 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102100202121212 its reverse (212121202001201), we get a palindrome (314221404122413).

The spelling of 102100202121212 in words is "one hundred two trillion, one hundred billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".