12213111313 has 8 divisors (see below), whose sum is σ = 13162556456. Its totient is φ = 11265091200.

The previous prime is 12213111311. The next prime is 12213111349. The reversal of 12213111313 is 31311131221.

It can be written as a sum of positive squares in 4 ways, for example, as 5020714449 + 7192396864 = 70857^2 + 84808^2 .

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 12213111313 - 2¹ = 12213111311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213111311) 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, 338418 + ... + 372763.

It is an arithmetic number, because the mean of its divisors is an integer number (1645319557).

Almost surely, 2^12213111313 is an apocalyptic number.

12213111313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12213111313 is a deficient number, since it is larger than the sum of its proper divisors (949445143).

12213111313 is a wasteful number, since it uses less digits than its factorization.

12213111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712515.

The product of its digits is 108, while the sum is 19.

Adding to 12213111313 its reverse (31311131221), we get a palindrome (43524242534).

The spelling of 12213111313 in words is "twelve billion, two hundred thirteen million, one hundred eleven thousand, three hundred thirteen".