212223123213 has 16 divisors (see below), whose sum is σ = 284923576320. Its totient is φ = 140503739184.

The previous prime is 212223123191. The next prime is 212223123263. The reversal of 212223123213 is 312321322212.

It is not a de Polignac number, because 212223123213 - 2⁵ = 212223123181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223123263) 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 15 ways as a sum of consecutive naturals, for example, 455770 + ... + 795092.

It is an arithmetic number, because the mean of its divisors is an integer number (17807723520).

Almost surely, 2^212223123213 is an apocalyptic number.

It is an amenable number.

212223123213 is a deficient number, since it is larger than the sum of its proper divisors (72700453107).

212223123213 is a wasteful number, since it uses less digits than its factorization.

212223123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340768.

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

Adding to 212223123213 its reverse (312321322212), we get a palindrome (524544445425).

The spelling of 212223123213 in words is "two hundred twelve billion, two hundred twenty-three million, one hundred twenty-three thousand, two hundred thirteen".