2203213213 has 4 divisors (see below), whose sum is σ = 2203574940. Its totient is φ = 2202851488.

The previous prime is 2203213169. The next prime is 2203213237. The reversal of 2203213213 is 3123123022.

2203213213 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.

It can be written as a sum of positive squares in 2 ways, for example, as 955922724 + 1247290489 = 30918^2 + 35317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2203213213 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 (2203213513) 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, 171568 + ... + 183961.

It is an arithmetic number, because the mean of its divisors is an integer number (550893735).

Almost surely, 2^2203213213 is an apocalyptic number.

It is an amenable number.

2203213213 is a deficient number, since it is larger than the sum of its proper divisors (361727).

2203213213 is an equidigital number, since it uses as much as digits as its factorization.

2203213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361726.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2203213213 is about 46938.3980659758. The cubic root of 2203213213 is about 1301.2243323678.

Adding to 2203213213 its reverse (3123123022), we get a palindrome (5326336235).

It can be divided in two parts, 22032 and 13213, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 2203213213 in words is "two billion, two hundred three million, two hundred thirteen thousand, two hundred thirteen".