12213333331 has 2 divisors, whose sum is σ = 12213333332. Its totient is φ = 12213333330.

The previous prime is 12213333311. The next prime is 12213333347. The reversal of 12213333331 is 13333331221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12213333331 - 2⁵ = 12213333299 is a prime.

It is a super-2 number, since 2×12213333331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12213333296 and 12213333305.

It is not a weakly prime, because it can be changed into another prime (12213333311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106666665 + 6106666666.

It is an arithmetic number, because the mean of its divisors is an integer number (6106666666).

Almost surely, 2^12213333331 is an apocalyptic number.

12213333331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213333331 is an equidigital number, since it uses as much as digits as its factorization.

12213333331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 25.

Adding to 12213333331 its reverse (13333331221), we get a palindrome (25546664552).

The spelling of 12213333331 in words is "twelve billion, two hundred thirteen million, three hundred thirty-three thousand, three hundred thirty-one".