22312224427 has 2 divisors, whose sum is σ = 22312224428. Its totient is φ = 22312224426.

The previous prime is 22312224391. The next prime is 22312224443. The reversal of 22312224427 is 72442221322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22312224427 is a prime.

It is a super-3 number, since 3×22312224427³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22312225427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11156112213 + 11156112214.

It is an arithmetic number, because the mean of its divisors is an integer number (11156112214).

Almost surely, 2^22312224427 is an apocalyptic number.

22312224427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22312224427 is an equidigital number, since it uses as much as digits as its factorization.

22312224427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 31.

Adding to 22312224427 its reverse (72442221322), we get a palindrome (94754445749).

The spelling of 22312224427 in words is "twenty-two billion, three hundred twelve million, two hundred twenty-four thousand, four hundred twenty-seven".