222236213 has 4 divisors (see below), whose sum is σ = 223708128. Its totient is φ = 220764300.

The previous prime is 222236207. The next prime is 222236227. The reversal of 222236213 is 312632222.

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 222236213 - 2⁶ = 222236149 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 (222236263) 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, 735731 + ... + 736032.

It is an arithmetic number, because the mean of its divisors is an integer number (55927032).

Almost surely, 2^222236213 is an apocalyptic number.

It is an amenable number.

222236213 is a deficient number, since it is larger than the sum of its proper divisors (1471915).

222236213 is a wasteful number, since it uses less digits than its factorization.

222236213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471914.

The product of its digits is 1728, while the sum is 23.

The square root of 222236213 is about 14907.5891075653. The cubic root of 222236213 is about 605.7195754758.

Adding to 222236213 its reverse (312632222), we get a palindrome (534868435).

The spelling of 222236213 in words is "two hundred twenty-two million, two hundred thirty-six thousand, two hundred thirteen".