790312120212221 has 4 divisors (see below), whose sum is σ = 790312706677212. Its totient is φ = 790311533747232.

The previous prime is 790312120212211. The next prime is 790312120212227. The reversal of 790312120212221 is 122212021213097.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 238492086489721 + 551820033722500 = 15443189^2 + 23490850^2 .

It is a cyclic number.

It is not a de Polignac number, because 790312120212221 - 2³⁴ = 790294940343037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (790312120212227) 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, 291206450 + ... + 293907843.

It is an arithmetic number, because the mean of its divisors is an integer number (197578176669303).

Almost surely, 2^{790312120212221} is an apocalyptic number.

It is an amenable number.

790312120212221 is a deficient number, since it is larger than the sum of its proper divisors (586464991).

790312120212221 is a wasteful number, since it uses less digits than its factorization.

790312120212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586464990.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 790312120212221 in words is "seven hundred ninety trillion, three hundred twelve billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".