22256432047 has 2 divisors, whose sum is σ = 22256432048. Its totient is φ = 22256432046.

The previous prime is 22256431997. The next prime is 22256432069. The reversal of 22256432047 is 74023465222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22256432047 - 2¹¹ = 22256429999 is a prime.

It is a super-2 number, since 2×22256432047² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22256431997 and 22256432015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22256436047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128216023 + 11128216024.

It is an arithmetic number, because the mean of its divisors is an integer number (11128216024).

Almost surely, 2^22256432047 is an apocalyptic number.

22256432047 is a deficient number, since it is larger than the sum of its proper divisors (1).

22256432047 is an equidigital number, since it uses as much as digits as its factorization.

22256432047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 37.

Adding to 22256432047 its reverse (74023465222), we get a palindrome (96279897269).

The spelling of 22256432047 in words is "twenty-two billion, two hundred fifty-six million, four hundred thirty-two thousand, forty-seven".