212211242323 has 4 divisors (see below), whose sum is σ = 212213752720. Its totient is φ = 212208731928.

The previous prime is 212211242317. The next prime is 212211242333. The reversal of 212211242323 is 323242112212.

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 212211242323 - 2⁹ = 212211241811 is a prime.

It is a super-2 number, since 2×212211242323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212211242333) 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, 1123815 + ... + 1298992.

It is an arithmetic number, because the mean of its divisors is an integer number (53053438180).

Almost surely, 2^212211242323 is an apocalyptic number.

212211242323 is a deficient number, since it is larger than the sum of its proper divisors (2510397).

212211242323 is an equidigital number, since it uses as much as digits as its factorization.

212211242323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510396.

The product of its digits is 2304, while the sum is 25.

Adding to 212211242323 its reverse (323242112212), we get a palindrome (535453354535).

The spelling of 212211242323 in words is "two hundred twelve billion, two hundred eleven million, two hundred forty-two thousand, three hundred twenty-three".