22429271 has 2 divisors, whose sum is σ = 22429272. Its totient is φ = 22429270.

The previous prime is 22429261. The next prime is 22429283. The reversal of 22429271 is 17292422.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22429271 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22429201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11214635 + 11214636.

It is an arithmetic number, because the mean of its divisors is an integer number (11214636).

Almost surely, 2^22429271 is an apocalyptic number.

22429271 is a deficient number, since it is larger than the sum of its proper divisors (1).

22429271 is an equidigital number, since it uses as much as digits as its factorization.

22429271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 22429271 is about 4735.9551306996. The cubic root of 22429271 is about 282.0146824339.

The spelling of 22429271 in words is "twenty-two million, four hundred twenty-nine thousand, two hundred seventy-one".