2212231 has 4 divisors (see below), whose sum is σ = 2528272. Its totient is φ = 1896192.

The previous prime is 2212229. The next prime is 2212241. The reversal of 2212231 is 1322122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322122 = 2 ⋅661061.

It is a cyclic number.

It is not a de Polignac number, because 2212231 - 2¹ = 2212229 is a prime.

It is a super-2 number, since 2×2212231² = 9787931994722, 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 (2212241) 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, 158010 + ... + 158023.

It is an arithmetic number, because the mean of its divisors is an integer number (632068).

2^2212231 is an apocalyptic number.

2212231 is a deficient number, since it is larger than the sum of its proper divisors (316041).

2212231 is an equidigital number, since it uses as much as digits as its factorization.

2212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316040.

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

The square root of 2212231 is about 1487.3570519549. The cubic root of 2212231 is about 130.2997226419.

Adding to 2212231 its reverse (1322122), we get a palindrome (3534353).

The spelling of 2212231 in words is "two million, two hundred twelve thousand, two hundred thirty-one".