220232242729 has 2 divisors, whose sum is σ = 220232242730. Its totient is φ = 220232242728.

The previous prime is 220232242717. The next prime is 220232242739. The reversal of 220232242729 is 927242232022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213676911504 + 6555331225 = 462252^2 + 80965^2 .

It is a cyclic number.

It is not a de Polignac number, because 220232242729 - 2¹¹ = 220232240681 is a prime.

It is not a weakly prime, because it can be changed into another prime (220232242739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110116121364 + 110116121365.

It is an arithmetic number, because the mean of its divisors is an integer number (110116121365).

Almost surely, 2^220232242729 is an apocalyptic number.

It is an amenable number.

220232242729 is a deficient number, since it is larger than the sum of its proper divisors (1).

220232242729 is an equidigital number, since it uses as much as digits as its factorization.

220232242729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 220232242729 in words is "two hundred twenty billion, two hundred thirty-two million, two hundred forty-two thousand, seven hundred twenty-nine".