10220257 has 8 divisors (see below), whose sum is σ = 10696896. Its totient is φ = 9746352.

The previous prime is 10220239. The next prime is 10220261. The reversal of 10220257 is 75202201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10220257 - 2⁷ = 10220129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13123 + ... + 13879.

It is an arithmetic number, because the mean of its divisors is an integer number (1337112).

Almost surely, 2^10220257 is an apocalyptic number.

It is an amenable number.

10220257 is a deficient number, since it is larger than the sum of its proper divisors (476639).

10220257 is an equidigital number, since it uses as much as digits as its factorization.

10220257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 10220257 is about 3196.9136678991. The cubic root of 10220257 is about 217.0137603031.

Adding to 10220257 its reverse (75202201), we get a palindrome (85422458).

The spelling of 10220257 in words is "ten million, two hundred twenty thousand, two hundred fifty-seven".