22244444231 has 2 divisors, whose sum is σ = 22244444232. Its totient is φ = 22244444230.

The previous prime is 22244444221. The next prime is 22244444263. The reversal of 22244444231 is 13244444222.

It is an a-pointer prime, because the next prime (22244444263) can be obtained adding 22244444231 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22244444231 - 2¹⁴ = 22244427847 is a prime.

It is a super-2 number, since 2×22244444231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22244444221) 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, 11122222115 + 11122222116.

It is an arithmetic number, because the mean of its divisors is an integer number (11122222116).

Almost surely, 2^22244444231 is an apocalyptic number.

22244444231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22244444231 is an equidigital number, since it uses as much as digits as its factorization.

22244444231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 32.

Adding to 22244444231 its reverse (13244444222), we get a palindrome (35488888453).

Subtracting from 22244444231 its reverse (13244444222), we obtain a palindrome (9000000009).

The spelling of 22244444231 in words is "twenty-two billion, two hundred forty-four million, four hundred forty-four thousand, two hundred thirty-one".