212112210223 has 8 divisors (see below), whose sum is σ = 212225150592. Its totient is φ = 211999307736.

The previous prime is 212112210217. The next prime is 212112210227. The reversal of 212112210223 is 322012211212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212112210223 - 2¹³ = 212112202031 is a prime.

It is a super-2 number, since 2×212112210223² (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 212112210223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112210227) 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 7 ways as a sum of consecutive naturals, for example, 23389336 + ... + 23398402.

It is an arithmetic number, because the mean of its divisors is an integer number (26528143824).

Almost surely, 2^212112210223 is an apocalyptic number.

212112210223 is a deficient number, since it is larger than the sum of its proper divisors (112940369).

212112210223 is an equidigital number, since it uses as much as digits as its factorization.

212112210223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18941.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212112210223 its reverse (322012211212), we get a palindrome (534124421435).

The spelling of 212112210223 in words is "two hundred twelve billion, one hundred twelve million, two hundred ten thousand, two hundred twenty-three".