23212271 has 2 divisors, whose sum is σ = 23212272. Its totient is φ = 23212270.

The previous prime is 23212249. The next prime is 23212289. The reversal of 23212271 is 17221232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23212271 - 2⁶ = 23212207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23212291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606135 + 11606136.

It is an arithmetic number, because the mean of its divisors is an integer number (11606136).

Almost surely, 2^23212271 is an apocalyptic number.

23212271 is a deficient number, since it is larger than the sum of its proper divisors (1).

23212271 is an equidigital number, since it uses as much as digits as its factorization.

23212271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 23212271 is about 4817.9114769784. The cubic root of 23212271 is about 285.2589049778.

The spelling of 23212271 in words is "twenty-three million, two hundred twelve thousand, two hundred seventy-one".