220022457 has 4 divisors (see below), whose sum is σ = 293363280. Its totient is φ = 146681636.

The previous prime is 220022447. The next prime is 220022471. The reversal of 220022457 is 754220022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220022457 - 2¹² = 220018361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220022417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36670407 + ... + 36670412.

It is an arithmetic number, because the mean of its divisors is an integer number (73340820).

Almost surely, 2^220022457 is an apocalyptic number.

It is an amenable number.

220022457 is a deficient number, since it is larger than the sum of its proper divisors (73340823).

220022457 is an equidigital number, since it uses as much as digits as its factorization.

220022457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73340822.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 220022457 is about 14833.1539801891. The cubic root of 220022457 is about 603.7016136868.

Adding to 220022457 its reverse (754220022), we get a palindrome (974242479).

The spelling of 220022457 in words is "two hundred twenty million, twenty-two thousand, four hundred fifty-seven".