22235531042447 has 2 divisors, whose sum is σ = 22235531042448. Its totient is φ = 22235531042446.

The previous prime is 22235531042407. The next prime is 22235531042453. The reversal of 22235531042447 is 74424013553222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22235531042447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22235531042398 and 22235531042407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22235531042407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11117765521223 + 11117765521224.

It is an arithmetic number, because the mean of its divisors is an integer number (11117765521224).

Almost surely, 2^{22235531042447} is an apocalyptic number.

22235531042447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22235531042447 is an equidigital number, since it uses as much as digits as its factorization.

22235531042447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 44.

Adding to 22235531042447 its reverse (74424013553222), we get a palindrome (96659544595669).

The spelling of 22235531042447 in words is "twenty-two trillion, two hundred thirty-five billion, five hundred thirty-one million, forty-two thousand, four hundred forty-seven".