12022231 has 8 divisors (see below), whose sum is σ = 13628720. Its totient is φ = 10513152.

The previous prime is 12022229. The next prime is 12022237. The reversal of 12022231 is 13222021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12022231 - 2¹ = 12022229 is a prime.

It is a super-2 number, since 2×12022231² = 289068076434722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24090 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (1703590).

Almost surely, 2^12022231 is an apocalyptic number.

12022231 is a deficient number, since it is larger than the sum of its proper divisors (1606489).

12022231 is a wasteful number, since it uses less digits than its factorization.

12022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48705.

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

The square root of 12022231 is about 3467.3088988436. The cubic root of 12022231 is about 229.0841398637.

Adding to 12022231 its reverse (13222021), we get a palindrome (25244252).

The spelling of 12022231 in words is "twelve million, twenty-two thousand, two hundred thirty-one".