22116751 has 2 divisors, whose sum is σ = 22116752. Its totient is φ = 22116750.

The previous prime is 22116727. The next prime is 22116769. The reversal of 22116751 is 15761122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22116751 - 2⁵ = 22116719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22116701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11058375 + 11058376.

It is an arithmetic number, because the mean of its divisors is an integer number (11058376).

Almost surely, 2^22116751 is an apocalyptic number.

22116751 is a deficient number, since it is larger than the sum of its proper divisors (1).

22116751 is an equidigital number, since it uses as much as digits as its factorization.

22116751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 22116751 is about 4702.8449900034. The cubic root of 22116751 is about 280.6987268484.

Adding to 22116751 its reverse (15761122), we get a palindrome (37877873).

The spelling of 22116751 in words is "twenty-two million, one hundred sixteen thousand, seven hundred fifty-one".