23211227 has 16 divisors (see below), whose sum is σ = 25683840. Its totient is φ = 20846592.

The previous prime is 23211169. The next prime is 23211229. The reversal of 23211227 is 72211232.

It is not a de Polignac number, because 23211227 - 2¹⁶ = 23145691 is a prime.

It is a super-2 number, since 2×23211227² = 1077522117691058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23211199 and 23211208.

It is not an unprimeable number, because it can be changed into a prime (23211229) 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 in 15 ways as a sum of consecutive naturals, for example, 99503 + ... + 99735.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 2^23211227 is an apocalyptic number.

23211227 is a deficient number, since it is larger than the sum of its proper divisors (2472613).

23211227 is a wasteful number, since it uses less digits than its factorization.

23211227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

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

The square root of 23211227 is about 4817.8031300583. The cubic root of 23211227 is about 285.2546282921.

Adding to 23211227 its reverse (72211232), we get a palindrome (95422459).

The spelling of 23211227 in words is "twenty-three million, two hundred eleven thousand, two hundred twenty-seven".