220864458427 has 2 divisors, whose sum is σ = 220864458428. Its totient is φ = 220864458426.

The previous prime is 220864458421. The next prime is 220864458431. The reversal of 220864458427 is 724854468022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220864458427 - 2⁷ = 220864458299 is a prime.

It is a super-2 number, since 2×220864458427² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220864458421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110432229213 + 110432229214.

It is an arithmetic number, because the mean of its divisors is an integer number (110432229214).

Almost surely, 2^220864458427 is an apocalyptic number.

220864458427 is a deficient number, since it is larger than the sum of its proper divisors (1).

220864458427 is an equidigital number, since it uses as much as digits as its factorization.

220864458427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6881280, while the sum is 52.

The spelling of 220864458427 in words is "two hundred twenty billion, eight hundred sixty-four million, four hundred fifty-eight thousand, four hundred twenty-seven".