11222257 has 2 divisors, whose sum is σ = 11222258. Its totient is φ = 11222256.

The previous prime is 11222251. The next prime is 11222287. The reversal of 11222257 is 75222211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8503056 + 2719201 = 2916^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222257 - 2⁷ = 11222129 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11222251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611128 + 5611129.

It is an arithmetic number, because the mean of its divisors is an integer number (5611129).

Almost surely, 2^11222257 is an apocalyptic number.

It is an amenable number.

11222257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222257 is an equidigital number, since it uses as much as digits as its factorization.

11222257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 11222257 is about 3349.9637311470. The cubic root of 11222257 is about 223.8858966593.

Adding to 11222257 its reverse (75222211), we get a palindrome (86444468).

The spelling of 11222257 in words is "eleven million, two hundred twenty-two thousand, two hundred fifty-seven".