222202813 has 4 divisors (see below), whose sum is σ = 253946080. Its totient is φ = 190459548.

The previous prime is 222202789. The next prime is 222202817. The reversal of 222202813 is 318202222.

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 222202813 - 2⁵ = 222202781 is a prime.

It is a super-2 number, since 2×222202813² = 98748180210225938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202817) 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, 15871623 + ... + 15871636.

It is an arithmetic number, because the mean of its divisors is an integer number (63486520).

Almost surely, 2^222202813 is an apocalyptic number.

It is an amenable number.

222202813 is a deficient number, since it is larger than the sum of its proper divisors (31743267).

222202813 is an equidigital number, since it uses as much as digits as its factorization.

222202813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31743266.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 222202813 is about 14906.4688306788. The cubic root of 222202813 is about 605.6892293153.

The spelling of 222202813 in words is "two hundred twenty-two million, two hundred two thousand, eight hundred thirteen".