12223212313 has 8 divisors (see below), whose sum is σ = 13937780808. Its totient is φ = 10619261184.

The previous prime is 12223212257. The next prime is 12223212341. The reversal of 12223212313 is 31321232221.

It can be written as a sum of positive squares in 4 ways, for example, as 2249794624 + 9973417689 = 47432^2 + 99867^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12223212313 - 2⁹ = 12223211801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223212383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27654106 + ... + 27654547.

It is an arithmetic number, because the mean of its divisors is an integer number (1742222601).

Almost surely, 2^12223212313 is an apocalyptic number.

12223212313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12223212313 is a deficient number, since it is larger than the sum of its proper divisors (1714568495).

12223212313 is a wasteful number, since it uses less digits than its factorization.

12223212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55308683.

The product of its digits is 864, while the sum is 22.

Adding to 12223212313 its reverse (31321232221), we get a palindrome (43544444534).

The spelling of 12223212313 in words is "twelve billion, two hundred twenty-three million, two hundred twelve thousand, three hundred thirteen".