21224088550739 has 2 divisors, whose sum is σ = 21224088550740. Its totient is φ = 21224088550738.

The previous prime is 21224088550711. The next prime is 21224088550783. The reversal of 21224088550739 is 93705588042212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21224088550739 - 2²⁴ = 21224071773523 is a prime.

It is a super-2 number, since 2×21224088550739² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21224088550799) 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, 10612044275369 + 10612044275370.

It is an arithmetic number, because the mean of its divisors is an integer number (10612044275370).

Almost surely, 2^{21224088550739} is an apocalyptic number.

21224088550739 is a deficient number, since it is larger than the sum of its proper divisors (1).

21224088550739 is an equidigital number, since it uses as much as digits as its factorization.

21224088550739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 21224088550739 in words is "twenty-one trillion, two hundred twenty-four billion, eighty-eight million, five hundred fifty thousand, seven hundred thirty-nine".