212012203223 has 4 divisors (see below), whose sum is σ = 212014348728. Its totient is φ = 212010057720.

The previous prime is 212012203189. The next prime is 212012203267. The reversal of 212012203223 is 322302210212.

It is a happy number.

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 212012203223 - 2²⁴ = 211995426007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212012203195 and 212012203204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012203423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916988 + ... + 1124673.

It is an arithmetic number, because the mean of its divisors is an integer number (53003587182).

Almost surely, 2^212012203223 is an apocalyptic number.

212012203223 is a deficient number, since it is larger than the sum of its proper divisors (2145505).

212012203223 is a wasteful number, since it uses less digits than its factorization.

212012203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145504.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212012203223 its reverse (322302210212), we get a palindrome (534314413435).

The spelling of 212012203223 in words is "two hundred twelve billion, twelve million, two hundred three thousand, two hundred twenty-three".