212332322231 has 4 divisors (see below), whose sum is σ = 221564162352. Its totient is φ = 203100482112.

The previous prime is 212332322203. The next prime is 212332322233. The reversal of 212332322231 is 132223233212.

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

It is not a de Polignac number, because 212332322231 - 2²⁶ = 212265213367 is a prime.

It is a super-2 number, since 2×212332322231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212332322231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212332322233) 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, 4615920026 + ... + 4615920071.

It is an arithmetic number, because the mean of its divisors is an integer number (55391040588).

Almost surely, 2^212332322231 is an apocalyptic number.

212332322231 is a deficient number, since it is larger than the sum of its proper divisors (9231840121).

212332322231 is an equidigital number, since it uses as much as digits as its factorization.

212332322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9231840120.

The product of its digits is 5184, while the sum is 26.

Adding to 212332322231 its reverse (132223233212), we get a palindrome (344555555443).

The spelling of 212332322231 in words is "two hundred twelve billion, three hundred thirty-two million, three hundred twenty-two thousand, two hundred thirty-one".