22116356738501 has 2 divisors, whose sum is σ = 22116356738502. Its totient is φ = 22116356738500.

The previous prime is 22116356738467. The next prime is 22116356738519. The reversal of 22116356738501 is 10583765361122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22048199193601 + 68157544900 = 4695551^2 + 261070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22116356738501 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22116356738501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22116356738701) 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, 11058178369250 + 11058178369251.

It is an arithmetic number, because the mean of its divisors is an integer number (11058178369251).

Almost surely, 2^{22116356738501} is an apocalyptic number.

It is an amenable number.

22116356738501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22116356738501 is an equidigital number, since it uses as much as digits as its factorization.

22116356738501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 22116356738501 in words is "twenty-two trillion, one hundred sixteen billion, three hundred fifty-six million, seven hundred thirty-eight thousand, five hundred one".