222122857 has 16 divisors (see below), whose sum is σ = 247520448. Its totient is φ = 197639680.

The previous prime is 222122839. The next prime is 222122869. The reversal of 222122857 is 758221222.

It is a cyclic number.

It is not a de Polignac number, because 222122857 - 2¹⁹ = 221598569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222122837) 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, 102093 + ... + 104245.

It is an arithmetic number, because the mean of its divisors is an integer number (15470028).

Almost surely, 2^222122857 is an apocalyptic number.

It is an amenable number.

222122857 is a deficient number, since it is larger than the sum of its proper divisors (25397591).

222122857 is a wasteful number, since it uses less digits than its factorization.

222122857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360.

The product of its digits is 8960, while the sum is 31.

The square root of 222122857 is about 14903.7866664818. The cubic root of 222122857 is about 605.6165715223.

The spelling of 222122857 in words is "two hundred twenty-two million, one hundred twenty-two thousand, eight hundred fifty-seven".