22085971 has 2 divisors, whose sum is σ = 22085972. Its totient is φ = 22085970.

The previous prime is 22085953. The next prime is 22085983. The reversal of 22085971 is 17958022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22085971 - 2⁵ = 22085939 is a prime.

It is not a weakly prime, because it can be changed into another prime (22085171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11042985 + 11042986.

It is an arithmetic number, because the mean of its divisors is an integer number (11042986).

Almost surely, 2^22085971 is an apocalyptic number.

22085971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22085971 is an equidigital number, since it uses as much as digits as its factorization.

22085971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 22085971 is about 4699.5713634331. The cubic root of 22085971 is about 280.5684497568.

The spelling of 22085971 in words is "twenty-two million, eighty-five thousand, nine hundred seventy-one".