22540013221247 has 2 divisors, whose sum is σ = 22540013221248. Its totient is φ = 22540013221246.

The previous prime is 22540013221147. The next prime is 22540013221249. The reversal of 22540013221247 is 74212231004522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22540013221247 - 2¹⁰ = 22540013220223 is a prime.

It is a super-2 number, since 2×22540013221247² (a number of 28 digits) contains 22 as substring.

Together with 22540013221249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22540013221249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270006610623 + 11270006610624.

It is an arithmetic number, because the mean of its divisors is an integer number (11270006610624).

Almost surely, 2^{22540013221247} is an apocalyptic number.

22540013221247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540013221247 is an equidigital number, since it uses as much as digits as its factorization.

22540013221247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 22540013221247 its reverse (74212231004522), we get a palindrome (96752244225769).

The spelling of 22540013221247 in words is "twenty-two trillion, five hundred forty billion, thirteen million, two hundred twenty-one thousand, two hundred forty-seven".