22112120193817 has 2 divisors, whose sum is σ = 22112120193818. Its totient is φ = 22112120193816.

The previous prime is 22112120193803. The next prime is 22112120193847. The reversal of 22112120193817 is 71839102121122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12748177470681 + 9363942723136 = 3570459^2 + 3060056^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112120193817 - 2³⁹ = 21562364379929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22112120193817.

It is not a weakly prime, because it can be changed into another prime (22112120193847) 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, 11056060096908 + 11056060096909.

It is an arithmetic number, because the mean of its divisors is an integer number (11056060096909).

Almost surely, 2^{22112120193817} is an apocalyptic number.

It is an amenable number.

22112120193817 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112120193817 is an equidigital number, since it uses as much as digits as its factorization.

22112120193817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 22112120193817 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty million, one hundred ninety-three thousand, eight hundred seventeen".