222851297 has 4 divisors (see below), whose sum is σ = 223081776. Its totient is φ = 222620820.

The previous prime is 222851257. The next prime is 222851303. The reversal of 222851297 is 792158222.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 222851297 - 2¹⁰ = 222850273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222851297.

It is not an unprimeable number, because it can be changed into a prime (222851257) 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, 113783 + ... + 115724.

It is an arithmetic number, because the mean of its divisors is an integer number (55770444).

Almost surely, 2^222851297 is an apocalyptic number.

It is an amenable number.

222851297 is a deficient number, since it is larger than the sum of its proper divisors (230479).

222851297 is an equidigital number, since it uses as much as digits as its factorization.

222851297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230478.

The product of its digits is 40320, while the sum is 38.

The square root of 222851297 is about 14928.2047480600. The cubic root of 222851297 is about 606.2778781668.

The spelling of 222851297 in words is "two hundred twenty-two million, eight hundred fifty-one thousand, two hundred ninety-seven".