22138406041 has 2 divisors, whose sum is σ = 22138406042. Its totient is φ = 22138406040.

The previous prime is 22138406021. The next prime is 22138406047. The reversal of 22138406041 is 14060483122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21791664400 + 346741641 = 147620^2 + 18621^2 .

It is a cyclic number.

It is not a de Polignac number, because 22138406041 - 2²⁵ = 22104851609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22138405994 and 22138406012.

It is not a weakly prime, because it can be changed into another prime (22138406047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11069203020 + 11069203021.

It is an arithmetic number, because the mean of its divisors is an integer number (11069203021).

Almost surely, 2^22138406041 is an apocalyptic number.

It is an amenable number.

22138406041 is a deficient number, since it is larger than the sum of its proper divisors (1).

22138406041 is an equidigital number, since it uses as much as digits as its factorization.

22138406041 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 31.

Adding to 22138406041 its reverse (14060483122), we get a palindrome (36198889163).

The spelling of 22138406041 in words is "twenty-two billion, one hundred thirty-eight million, four hundred six thousand, forty-one".