23220207817799 has 2 divisors, whose sum is σ = 23220207817800. Its totient is φ = 23220207817798.

The previous prime is 23220207817757. The next prime is 23220207817861. The reversal of 23220207817799 is 99771870202232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23220207817799 - 2¹² = 23220207813703 is a prime.

It is a super-2 number, since 2×23220207817799² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220207817399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610103908899 + 11610103908900.

It is an arithmetic number, because the mean of its divisors is an integer number (11610103908900).

Almost surely, 2^{23220207817799} is an apocalyptic number.

23220207817799 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220207817799 is an equidigital number, since it uses as much as digits as its factorization.

23220207817799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 23220207817799 in words is "twenty-three trillion, two hundred twenty billion, two hundred seven million, eight hundred seventeen thousand, seven hundred ninety-nine".