23222440427 has 2 divisors, whose sum is σ = 23222440428. Its totient is φ = 23222440426.

The previous prime is 23222440399. The next prime is 23222440441. The reversal of 23222440427 is 72404422232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23222440427 - 2⁶ = 23222440363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23222440393 and 23222440402.

It is not a weakly prime, because it can be changed into another prime (23222440457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611220213 + 11611220214.

It is an arithmetic number, because the mean of its divisors is an integer number (11611220214).

Almost surely, 2^23222440427 is an apocalyptic number.

23222440427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23222440427 is an equidigital number, since it uses as much as digits as its factorization.

23222440427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 32.

Adding to 23222440427 its reverse (72404422232), we get a palindrome (95626862659).

The spelling of 23222440427 in words is "twenty-three billion, two hundred twenty-two million, four hundred forty thousand, four hundred twenty-seven".