212312132223 has 32 divisors (see below), whose sum is σ = 290569420800. Its totient is φ = 137830441056.

The previous prime is 212312132213. The next prime is 212312132237. The reversal of 212312132223 is 322231213212.

It is not a de Polignac number, because 212312132223 - 2¹⁴ = 212312115839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212312132193 and 212312132202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212312132213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23432068 + ... + 23441126.

It is an arithmetic number, because the mean of its divisors is an integer number (9080294400).

Almost surely, 2^212312132223 is an apocalyptic number.

212312132223 is a deficient number, since it is larger than the sum of its proper divisors (78257288577).

212312132223 is a wasteful number, since it uses less digits than its factorization.

212312132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9931.

The product of its digits is 1728, while the sum is 24.

Adding to 212312132223 its reverse (322231213212), we get a palindrome (534543345435).

The spelling of 212312132223 in words is "two hundred twelve billion, three hundred twelve million, one hundred thirty-two thousand, two hundred twenty-three".