2212132231 has 4 divisors (see below), whose sum is σ = 2232806472. Its totient is φ = 2191457992.

The previous prime is 2212132211. The next prime is 2212132261. The reversal of 2212132231 is 1322312122.

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 2212132231 - 2⁷ = 2212132103 is a prime.

It is a super-2 number, since 2×2212132231² = 9787058014858074722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212132199 and 2212132208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212132211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10336960 + ... + 10337173.

It is an arithmetic number, because the mean of its divisors is an integer number (558201618).

Almost surely, 2^2212132231 is an apocalyptic number.

2212132231 is a deficient number, since it is larger than the sum of its proper divisors (20674241).

2212132231 is a wasteful number, since it uses less digits than its factorization.

2212132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20674240.

The product of its digits is 288, while the sum is 19.

The square root of 2212132231 is about 47033.3098027345. The cubic root of 2212132231 is about 1302.9778345855.

Adding to 2212132231 its reverse (1322312122), we get a palindrome (3534444353).

The spelling of 2212132231 in words is "two billion, two hundred twelve million, one hundred thirty-two thousand, two hundred thirty-one".