2213231213 has 4 divisors (see below), whose sum is σ = 2213373120. Its totient is φ = 2213089308.

The previous prime is 2213231203. The next prime is 2213231227. The reversal of 2213231213 is 3121323122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3121323122 = 2 ⋅1560661561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213231213 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 (2213231203) 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, 44195 + ... + 79872.

It is an arithmetic number, because the mean of its divisors is an integer number (553343280).

Almost surely, 2^2213231213 is an apocalyptic number.

It is an amenable number.

2213231213 is a deficient number, since it is larger than the sum of its proper divisors (141907).

2213231213 is a wasteful number, since it uses less digits than its factorization.

2213231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141906.

The product of its digits is 432, while the sum is 20.

The square root of 2213231213 is about 47044.9913699641. The cubic root of 2213231213 is about 1303.1935709540.

Adding to 2213231213 its reverse (3121323122), we get a palindrome (5334554335).

The spelling of 2213231213 in words is "two billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred thirteen".