220354762231 has 2 divisors, whose sum is σ = 220354762232. Its totient is φ = 220354762230.

The previous prime is 220354762217. The next prime is 220354762249. The reversal of 220354762231 is 132267453022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220354762231 is a prime.

It is a super-2 number, since 2×220354762231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220354763231) 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, 110177381115 + 110177381116.

It is an arithmetic number, because the mean of its divisors is an integer number (110177381116).

Almost surely, 2^220354762231 is an apocalyptic number.

220354762231 is a deficient number, since it is larger than the sum of its proper divisors (1).

220354762231 is an equidigital number, since it uses as much as digits as its factorization.

220354762231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 220354762231 in words is "two hundred twenty billion, three hundred fifty-four million, seven hundred sixty-two thousand, two hundred thirty-one".