799902010122121 has 4 divisors (see below), whose sum is σ = 803248880457600. Its totient is φ = 796555139786644.

The previous prime is 799902010122079. The next prime is 799902010122247. The reversal of 799902010122121 is 121221010209997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 799902010122121 - 2⁷ = 799902010121993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799902010422121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673435167381 + ... + 1673435167858.

It is an arithmetic number, because the mean of its divisors is an integer number (200812220114400).

Almost surely, 2^{799902010122121} is an apocalyptic number.

It is an amenable number.

799902010122121 is a deficient number, since it is larger than the sum of its proper divisors (3346870335479).

799902010122121 is a wasteful number, since it uses less digits than its factorization.

799902010122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346870335478.

The product of its (nonzero) digits is 81648, while the sum is 46.

The spelling of 799902010122121 in words is "seven hundred ninety-nine trillion, nine hundred two billion, ten million, one hundred twenty-two thousand, one hundred twenty-one".