19222156263853 has 2 divisors, whose sum is σ = 19222156263854. Its totient is φ = 19222156263852.

The previous prime is 19222156263809. The next prime is 19222156263859. The reversal of 19222156263853 is 35836265122291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14047818833764 + 5174337430089 = 3748042^2 + 2274717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19222156263853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19222156263794 and 19222156263803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19222156263859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9611078131926 + 9611078131927.

It is an arithmetic number, because the mean of its divisors is an integer number (9611078131927).

Almost surely, 2^{19222156263853} is an apocalyptic number.

It is an amenable number.

19222156263853 is a deficient number, since it is larger than the sum of its proper divisors (1).

19222156263853 is an equidigital number, since it uses as much as digits as its factorization.

19222156263853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 55.

The spelling of 19222156263853 in words is "nineteen trillion, two hundred twenty-two billion, one hundred fifty-six million, two hundred sixty-three thousand, eight hundred fifty-three".