22091371 has 2 divisors, whose sum is σ = 22091372. Its totient is φ = 22091370.

The previous prime is 22091353. The next prime is 22091389. The reversal of 22091371 is 17319022.

It is a balanced prime because it is at equal distance from previous prime (22091353) and next prime (22091389).

It is a cyclic number.

It is not a de Polignac number, because 22091371 - 2¹³ = 22083179 is a prime.

It is not a weakly prime, because it can be changed into another prime (22091341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11045685 + 11045686.

It is an arithmetic number, because the mean of its divisors is an integer number (11045686).

Almost surely, 2^22091371 is an apocalyptic number.

22091371 is a deficient number, since it is larger than the sum of its proper divisors (1).

22091371 is an equidigital number, since it uses as much as digits as its factorization.

22091371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 22091371 is about 4700.1458488009. The cubic root of 22091371 is about 280.5913141378.

The spelling of 22091371 in words is "twenty-two million, ninety-one thousand, three hundred seventy-one".