22145384117 has 2 divisors, whose sum is σ = 22145384118. Its totient is φ = 22145384116.

The previous prime is 22145384077. The next prime is 22145384141. The reversal of 22145384117 is 71148354122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22127752516 + 17631601 = 148754^2 + 4199^2 .

It is a cyclic number.

It is not a de Polignac number, because 22145384117 - 2¹⁴ = 22145367733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22145384167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072692058 + 11072692059.

It is an arithmetic number, because the mean of its divisors is an integer number (11072692059).

Almost surely, 2^22145384117 is an apocalyptic number.

It is an amenable number.

22145384117 is a deficient number, since it is larger than the sum of its proper divisors (1).

22145384117 is an equidigital number, since it uses as much as digits as its factorization.

22145384117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The spelling of 22145384117 in words is "twenty-two billion, one hundred forty-five million, three hundred eighty-four thousand, one hundred seventeen".