22244442331 has 2 divisors, whose sum is σ = 22244442332. Its totient is φ = 22244442330.

The previous prime is 22244442317. The next prime is 22244442349. The reversal of 22244442331 is 13324444222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22244442331 - 2¹⁹ = 22243918043 is a prime.

It is a super-2 number, since 2×22244442331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22244442293 and 22244442302.

It is not a weakly prime, because it can be changed into another prime (22244442631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122221165 + 11122221166.

It is an arithmetic number, because the mean of its divisors is an integer number (11122221166).

Almost surely, 2^22244442331 is an apocalyptic number.

22244442331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244442331 is an equidigital number, since it uses as much as digits as its factorization.

22244442331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 31.

Adding to 22244442331 its reverse (13324444222), we get a palindrome (35568886553).

The spelling of 22244442331 in words is "twenty-two billion, two hundred forty-four million, four hundred forty-two thousand, three hundred thirty-one".