222400213 has 4 divisors (see below), whose sum is σ = 254171680. Its totient is φ = 190628748.

The previous prime is 222400207. The next prime is 222400219. The reversal of 222400213 is 312004222.

222400213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (222400207) and next prime (222400219).

It is a cyclic number.

It is not a de Polignac number, because 222400213 - 2¹³ = 222392021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222400219) 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, 15885723 + ... + 15885736.

It is an arithmetic number, because the mean of its divisors is an integer number (63542920).

Almost surely, 2^222400213 is an apocalyptic number.

It is an amenable number.

222400213 is a deficient number, since it is larger than the sum of its proper divisors (31771467).

222400213 is an equidigital number, since it uses as much as digits as its factorization.

222400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31771466.

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

The square root of 222400213 is about 14913.0886472253. The cubic root of 222400213 is about 605.8685364746.

Adding to 222400213 its reverse (312004222), we get a palindrome (534404435).

The spelling of 222400213 in words is "two hundred twenty-two million, four hundred thousand, two hundred thirteen".