220251297 has 16 divisors (see below), whose sum is σ = 341124992. Its totient is φ = 123793920.

The previous prime is 220251277. The next prime is 220251299. The reversal of 220251297 is 792152022.

It is not a de Polignac number, because 220251297 - 2⁷ = 220251169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220251299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84688 + ... + 87249.

It is an arithmetic number, because the mean of its divisors is an integer number (21320312).

Almost surely, 2^220251297 is an apocalyptic number.

It is an amenable number.

220251297 is a deficient number, since it is larger than the sum of its proper divisors (120873695).

220251297 is a wasteful number, since it uses less digits than its factorization.

220251297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172008.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 220251297 is about 14840.8657766318. The cubic root of 220251297 is about 603.9108396160.

The spelling of 220251297 in words is "two hundred twenty million, two hundred fifty-one thousand, two hundred ninety-seven".