2212331 has 4 divisors (see below), whose sum is σ = 2413464. Its totient is φ = 2011200.

The previous prime is 2212321. The next prime is 2212333. The reversal of 2212331 is 1332122.

Added to its reverse (1332122) it gives a triangular number (3544453 = T₂₆₆₂).

It is a happy number.

2212331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212331 - 2¹⁸ = 1950187 is a prime.

It is a super-2 number, since 2×2212331² = 9788816907122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100550 + ... + 100571.

It is an arithmetic number, because the mean of its divisors is an integer number (603366).

2^2212331 is an apocalyptic number.

2212331 is a deficient number, since it is larger than the sum of its proper divisors (201133).

2212331 is a wasteful number, since it uses less digits than its factorization.

2212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201132.

The product of its digits is 72, while the sum is 14.

The square root of 2212331 is about 1487.3906682509. The cubic root of 2212331 is about 130.3016859354.

Adding to 2212331 its reverse (1332122), we get a palindrome (3544453).

It can be divided in two parts, 221 and 2331, that added together give a palindrome (2552).

The spelling of 2212331 in words is "two million, two hundred twelve thousand, three hundred thirty-one".