21224046335759 has 2 divisors, whose sum is σ = 21224046335760. Its totient is φ = 21224046335758.

The previous prime is 21224046335641. The next prime is 21224046335803. The reversal of 21224046335759 is 95753364042212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21224046335759 - 2³² = 21219751368463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21224046335759.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21224046335959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10612023167879 + 10612023167880.

It is an arithmetic number, because the mean of its divisors is an integer number (10612023167880).

Almost surely, 2^{21224046335759} is an apocalyptic number.

21224046335759 is a deficient number, since it is larger than the sum of its proper divisors (1).

21224046335759 is an equidigital number, since it uses as much as digits as its factorization.

21224046335759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 21224046335759 in words is "twenty-one trillion, two hundred twenty-four billion, forty-six million, three hundred thirty-five thousand, seven hundred fifty-nine".