12202231 has 4 divisors (see below), whose sum is σ = 12212200. Its totient is φ = 12192264.

The previous prime is 12202219. The next prime is 12202249. The reversal of 12202231 is 13220221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12202231 - 2⁹ = 12201719 is a prime.

It is a super-2 number, since 2×12202231² = 297788882754722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2841 + ... + 5698.

It is an arithmetic number, because the mean of its divisors is an integer number (3053050).

Almost surely, 2^12202231 is an apocalyptic number.

12202231 is a deficient number, since it is larger than the sum of its proper divisors (9969).

12202231 is an equidigital number, since it uses as much as digits as its factorization.

12202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9968.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12202231 is about 3493.1691914363. The cubic root of 12202231 is about 230.2217835502.

Adding to 12202231 its reverse (13220221), we get a palindrome (25422452).

The spelling of 12202231 in words is "twelve million, two hundred two thousand, two hundred thirty-one".