10122257 has 4 divisors (see below), whose sum is σ = 10264896. Its totient is φ = 9979620.

The previous prime is 10122251. The next prime is 10122263. The reversal of 10122257 is 75222101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75222101 = 257 ⋅292693.

It is an interprime number because it is at equal distance from previous prime (10122251) and next prime (10122263).

It is a cyclic number.

It is not a de Polignac number, because 10122257 - 2¹⁰ = 10121233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10122251) 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, 71213 + ... + 71354.

It is an arithmetic number, because the mean of its divisors is an integer number (2566224).

Almost surely, 2^10122257 is an apocalyptic number.

It is an amenable number.

10122257 is a deficient number, since it is larger than the sum of its proper divisors (142639).

10122257 is an equidigital number, since it uses as much as digits as its factorization.

10122257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142638.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 10122257 is about 3181.5494652763. The cubic root of 10122257 is about 216.3178975319.

Adding to 10122257 its reverse (75222101), we get a palindrome (85344358).

The spelling of 10122257 in words is "ten million, one hundred twenty-two thousand, two hundred fifty-seven".