22040340247 has 2 divisors, whose sum is σ = 22040340248. Its totient is φ = 22040340246.

The previous prime is 22040340221. The next prime is 22040340253. The reversal of 22040340247 is 74204304022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22040340247 - 2¹⁵ = 22040307479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22040340277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020170123 + 11020170124.

It is an arithmetic number, because the mean of its divisors is an integer number (11020170124).

Almost surely, 2^22040340247 is an apocalyptic number.

22040340247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22040340247 is an equidigital number, since it uses as much as digits as its factorization.

22040340247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 28.

Adding to 22040340247 its reverse (74204304022), we get a palindrome (96244644269).

The spelling of 22040340247 in words is "twenty-two billion, forty million, three hundred forty thousand, two hundred forty-seven".