222041857 has 8 divisors (see below), whose sum is σ = 226497384. Its totient is φ = 217596288.

The previous prime is 222041843. The next prime is 222041861. The reversal of 222041857 is 758140222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89699841 + 132342016 = 9471^2 + 11504^2 .

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 222041857 - 2²⁷ = 87824129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222041357) 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, 56013 + ... + 59845.

It is an arithmetic number, because the mean of its divisors is an integer number (28312173).

Almost surely, 2^222041857 is an apocalyptic number.

It is an amenable number.

222041857 is a deficient number, since it is larger than the sum of its proper divisors (4455527).

222041857 is a wasteful number, since it uses less digits than its factorization.

222041857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979.

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

The square root of 222041857 is about 14901.0689884988. The cubic root of 222041857 is about 605.5429472422.

The spelling of 222041857 in words is "two hundred twenty-two million, forty-one thousand, eight hundred fifty-seven".