220232333231 has 2 divisors, whose sum is σ = 220232333232. Its totient is φ = 220232333230.

The previous prime is 220232333171. The next prime is 220232333239. The reversal of 220232333231 is 132333232022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220232333231 - 2²² = 220228138927 is a prime.

It is a super-2 number, since 2×220232333231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220232333231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220232333239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110116166615 + 110116166616.

It is an arithmetic number, because the mean of its divisors is an integer number (110116166616).

Almost surely, 2^220232333231 is an apocalyptic number.

220232333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220232333231 is an equidigital number, since it uses as much as digits as its factorization.

220232333231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 220232333231 its reverse (132333232022), we get a palindrome (352565565253).

The spelling of 220232333231 in words is "two hundred twenty billion, two hundred thirty-two million, three hundred thirty-three thousand, two hundred thirty-one".