12222022331 has 2 divisors, whose sum is σ = 12222022332. Its totient is φ = 12222022330.

The previous prime is 12222022301. The next prime is 12222022343. The reversal of 12222022331 is 13322022221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13322022221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222022331 is a prime.

It is a super-2 number, since 2×12222022331² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12222022301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111011165 + 6111011166.

It is an arithmetic number, because the mean of its divisors is an integer number (6111011166).

Almost surely, 2^12222022331 is an apocalyptic number.

12222022331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222022331 is an equidigital number, since it uses as much as digits as its factorization.

12222022331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12222022331 its reverse (13322022221), we get a palindrome (25544044552).

The spelling of 12222022331 in words is "twelve billion, two hundred twenty-two million, twenty-two thousand, three hundred thirty-one".