22151784293 has 2 divisors, whose sum is σ = 22151784294. Its totient is φ = 22151784292.

The previous prime is 22151784253. The next prime is 22151784323. The reversal of 22151784293 is 39248715122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14603997409 + 7547786884 = 120847^2 + 86878^2 .

It is a cyclic number.

It is not a de Polignac number, because 22151784293 - 2⁸ = 22151784037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22151784223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11075892146 + 11075892147.

It is an arithmetic number, because the mean of its divisors is an integer number (11075892147).

Almost surely, 2^22151784293 is an apocalyptic number.

It is an amenable number.

22151784293 is a deficient number, since it is larger than the sum of its proper divisors (1).

22151784293 is an equidigital number, since it uses as much as digits as its factorization.

22151784293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The spelling of 22151784293 in words is "twenty-two billion, one hundred fifty-one million, seven hundred eighty-four thousand, two hundred ninety-three".