221422716673933 has 2 divisors, whose sum is σ = 221422716673934. Its totient is φ = 221422716673932.

The previous prime is 221422716673867. The next prime is 221422716674099. The reversal of 221422716673933 is 339376617224122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172352313403204 + 49070403270729 = 13128302^2 + 7005027^2 .

It is a cyclic number.

It is not a de Polignac number, because 221422716673933 - 2⁹ = 221422716673421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221422716653933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110711358336966 + 110711358336967.

It is an arithmetic number, because the mean of its divisors is an integer number (110711358336967).

Almost surely, 2^{221422716673933} is an apocalyptic number.

It is an amenable number.

221422716673933 is a deficient number, since it is larger than the sum of its proper divisors (1).

221422716673933 is an equidigital number, since it uses as much as digits as its factorization.

221422716673933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 58.

The spelling of 221422716673933 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, seven hundred sixteen million, six hundred seventy-three thousand, nine hundred thirty-three".