12211023 has 16 divisors (see below), whose sum is σ = 18141696. Its totient is φ = 7242240.

The previous prime is 12211021. The next prime is 12211057. The reversal of 12211023 is 32011221.

It is not a de Polignac number, because 12211023 - 2¹ = 12211021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2386 + ... + 5487.

It is an arithmetic number, because the mean of its divisors is an integer number (1133856).

Almost surely, 2^12211023 is an apocalyptic number.

12211023 is a deficient number, since it is larger than the sum of its proper divisors (5930673).

12211023 is a wasteful number, since it uses less digits than its factorization.

12211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12211023 is about 3494.4274209089. The cubic root of 12211023 is about 230.2770637137.

Adding to 12211023 its reverse (32011221), we get a palindrome (44222244).

The spelling of 12211023 in words is "twelve million, two hundred eleven thousand, twenty-three".