23222231213 has 4 divisors (see below), whose sum is σ = 23248711260. Its totient is φ = 23195751168.

The previous prime is 23222231189. The next prime is 23222231239. The reversal of 23222231213 is 31213222232.

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 20966171209 + 2256060004 = 144797^2 + 47498^2 .

It is a cyclic number.

It is not a de Polignac number, because 23222231213 - 2¹⁰ = 23222230189 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 (23222231413) 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, 13238708 + ... + 13240461.

It is an arithmetic number, because the mean of its divisors is an integer number (5812177815).

Almost surely, 2^23222231213 is an apocalyptic number.

It is an amenable number.

23222231213 is a deficient number, since it is larger than the sum of its proper divisors (26480047).

23222231213 is an equidigital number, since it uses as much as digits as its factorization.

23222231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480046.

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

Adding to 23222231213 its reverse (31213222232), we get a palindrome (54435453445).

The spelling of 23222231213 in words is "twenty-three billion, two hundred twenty-two million, two hundred thirty-one thousand, two hundred thirteen".