799902221101 has 2 divisors, whose sum is σ = 799902221102. Its totient is φ = 799902221100.

The previous prime is 799902221077. The next prime is 799902221123. The reversal of 799902221101 is 101122209997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519118809001 + 280783412100 = 720499^2 + 529890^2 .

It is an emirp because it is prime and its reverse (101122209997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 799902221101 - 2¹⁵ = 799902188333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799902221141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399951110550 + 399951110551.

It is an arithmetic number, because the mean of its divisors is an integer number (399951110551).

Almost surely, 2^799902221101 is an apocalyptic number.

It is an amenable number.

799902221101 is a deficient number, since it is larger than the sum of its proper divisors (1).

799902221101 is an equidigital number, since it uses as much as digits as its factorization.

799902221101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 799902221101 in words is "seven hundred ninety-nine billion, nine hundred two million, two hundred twenty-one thousand, one hundred one".