212223022423 has 4 divisors (see below), whose sum is σ = 212229142200. Its totient is φ = 212216902648.

The previous prime is 212223022409. The next prime is 212223022433. The reversal of 212223022423 is 324220322212.

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 212223022423 - 2⁵ = 212223022391 is a prime.

It is a super-2 number, since 2×212223022423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223022433) 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, 3007573 + ... + 3077326.

It is an arithmetic number, because the mean of its divisors is an integer number (53057285550).

Almost surely, 2^212223022423 is an apocalyptic number.

212223022423 is a deficient number, since it is larger than the sum of its proper divisors (6119777).

212223022423 is an equidigital number, since it uses as much as digits as its factorization.

212223022423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119776.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 212223022423 its reverse (324220322212), we get a palindrome (536443344635).

The spelling of 212223022423 in words is "two hundred twelve billion, two hundred twenty-three million, twenty-two thousand, four hundred twenty-three".