11222857 has 2 divisors, whose sum is σ = 11222858. Its totient is φ = 11222856.

The previous prime is 11222851. The next prime is 11222867. The reversal of 11222857 is 75822211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11215801 + 7056 = 3349^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222857 - 2¹¹ = 11220809 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611428 + 5611429.

It is an arithmetic number, because the mean of its divisors is an integer number (5611429).

Almost surely, 2^11222857 is an apocalyptic number.

It is an amenable number.

11222857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222857 is an equidigital number, since it uses as much as digits as its factorization.

11222857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 11222857 is about 3350.0532831583. The cubic root of 11222857 is about 223.8898866215.

The spelling of 11222857 in words is "eleven million, two hundred twenty-two thousand, eight hundred fifty-seven".