23221414450991 has 2 divisors, whose sum is σ = 23221414450992. Its totient is φ = 23221414450990.

The previous prime is 23221414450943. The next prime is 23221414451051. The reversal of 23221414450991 is 19905441412232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23221414450991 - 2³⁴ = 23204234581807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221414450931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610707225495 + 11610707225496.

It is an arithmetic number, because the mean of its divisors is an integer number (11610707225496).

Almost surely, 2^{23221414450991} is an apocalyptic number.

23221414450991 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221414450991 is an equidigital number, since it uses as much as digits as its factorization.

23221414450991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 23221414450991 in words is "twenty-three trillion, two hundred twenty-one billion, four hundred fourteen million, four hundred fifty thousand, nine hundred ninety-one".