22640244311 has 2 divisors, whose sum is σ = 22640244312. Its totient is φ = 22640244310.

The previous prime is 22640244271. The next prime is 22640244449. The reversal of 22640244311 is 11344204622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22640244311 - 2⁶ = 22640244247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22640241311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11320122155 + 11320122156.

It is an arithmetic number, because the mean of its divisors is an integer number (11320122156).

Almost surely, 2^22640244311 is an apocalyptic number.

22640244311 is a deficient number, since it is larger than the sum of its proper divisors (1).

22640244311 is an equidigital number, since it uses as much as digits as its factorization.

22640244311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 22640244311 its reverse (11344204622), we get a palindrome (33984448933).

The spelling of 22640244311 in words is "twenty-two billion, six hundred forty million, two hundred forty-four thousand, three hundred eleven".