222855097 has 4 divisors (see below), whose sum is σ = 224827380. Its totient is φ = 220882816.

The previous prime is 222855077. The next prime is 222855151. The reversal of 222855097 is 790558222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91317136 + 131537961 = 9556^2 + 11469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222855097 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222855077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985972 + ... + 986197.

It is an arithmetic number, because the mean of its divisors is an integer number (56206845).

Almost surely, 2^222855097 is an apocalyptic number.

It is an amenable number.

222855097 is a deficient number, since it is larger than the sum of its proper divisors (1972283).

222855097 is a wasteful number, since it uses less digits than its factorization.

222855097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972282.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 222855097 is about 14928.3320233709. The cubic root of 222855097 is about 606.2813241759.

The spelling of 222855097 in words is "two hundred twenty-two million, eight hundred fifty-five thousand, ninety-seven".