222862813 has 4 divisors (see below), whose sum is σ = 230051968. Its totient is φ = 215673660.

The previous prime is 222862793. The next prime is 222862819. The reversal of 222862813 is 318268222.

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 a de Polignac number, because none of the positive numbers 2^k-222862813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222862819) 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, 3594531 + ... + 3594592.

It is an arithmetic number, because the mean of its divisors is an integer number (57512992).

Almost surely, 2^222862813 is an apocalyptic number.

It is an amenable number.

222862813 is a deficient number, since it is larger than the sum of its proper divisors (7189155).

222862813 is an equidigital number, since it uses as much as digits as its factorization.

222862813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189154.

The product of its digits is 18432, while the sum is 34.

The square root of 222862813 is about 14928.5904559004. The cubic root of 222862813 is about 606.2883212677.

The spelling of 222862813 in words is "two hundred twenty-two million, eight hundred sixty-two thousand, eight hundred thirteen".