220332312232231 has 2 divisors, whose sum is σ = 220332312232232. Its totient is φ = 220332312232230.

The previous prime is 220332312232229. The next prime is 220332312232237. The reversal of 220332312232231 is 132232213233022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220332312232231 - 2¹ = 220332312232229 is a prime.

It is a super-2 number, since 2×220332312232231² (a number of 29 digits) contains 22 as substring.

Together with 220332312232229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 220332312232193 and 220332312232202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220332312232237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110166156116115 + 110166156116116.

It is an arithmetic number, because the mean of its divisors is an integer number (110166156116116).

Almost surely, 2^{220332312232231} is an apocalyptic number.

220332312232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220332312232231 is an equidigital number, since it uses as much as digits as its factorization.

220332312232231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 220332312232231 its reverse (132232213233022), we get a palindrome (352564525465253).

The spelling of 220332312232231 in words is "two hundred twenty trillion, three hundred thirty-two billion, three hundred twelve million, two hundred thirty-two thousand, two hundred thirty-one".