220222213 has 4 divisors (see below), whose sum is σ = 224907840. Its totient is φ = 215536588.

The previous prime is 220222181. The next prime is 220222231. The reversal of 220222213 is 312222022.

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 220222213 - 2⁵ = 220222181 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 (220222243) 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, 2342743 + ... + 2342836.

It is an arithmetic number, because the mean of its divisors is an integer number (56226960).

Almost surely, 2^220222213 is an apocalyptic number.

It is an amenable number.

220222213 is a deficient number, since it is larger than the sum of its proper divisors (4685627).

220222213 is an equidigital number, since it uses as much as digits as its factorization.

220222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685626.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220222213 is about 14839.8858823106. The cubic root of 220222213 is about 603.8842564717.

Adding to 220222213 its reverse (312222022), we get a palindrome (532444235).

The spelling of 220222213 in words is "two hundred twenty million, two hundred twenty-two thousand, two hundred thirteen".