2212132331 has 4 divisors (see below), whose sum is σ = 2213957232. Its totient is φ = 2210307432.

The previous prime is 2212132309. The next prime is 2212132397. The reversal of 2212132331 is 1332312122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212132331 is a prime.

It is a super-2 number, since 2×2212132331² = 9787058899710987122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212132301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910631 + ... + 913056.

It is an arithmetic number, because the mean of its divisors is an integer number (553489308).

Almost surely, 2^2212132331 is an apocalyptic number.

2212132331 is a deficient number, since it is larger than the sum of its proper divisors (1824901).

2212132331 is a wasteful number, since it uses less digits than its factorization.

2212132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824900.

The product of its digits is 432, while the sum is 20.

The square root of 2212132331 is about 47033.3108658108. The cubic root of 2212132331 is about 1302.9778542193.

Adding to 2212132331 its reverse (1332312122), we get a palindrome (3544444453).

The spelling of 2212132331 in words is "two billion, two hundred twelve million, one hundred thirty-two thousand, three hundred thirty-one".