12102021020951 has 2 divisors, whose sum is σ = 12102021020952. Its totient is φ = 12102021020950.

The previous prime is 12102021020911. The next prime is 12102021021031. The reversal of 12102021020951 is 15902012020121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102021020951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12102021020951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102021020911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051010510475 + 6051010510476.

It is an arithmetic number, because the mean of its divisors is an integer number (6051010510476).

Almost surely, 2^{12102021020951} is an apocalyptic number.

12102021020951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102021020951 is an equidigital number, since it uses as much as digits as its factorization.

12102021020951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 12102021020951 in words is "twelve trillion, one hundred two billion, twenty-one million, twenty thousand, nine hundred fifty-one".