223212321223 has 4 divisors (see below), whose sum is σ = 223213374448. Its totient is φ = 223211268000.

The previous prime is 223212321221. The next prime is 223212321307. The reversal of 223212321223 is 322123212322.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 223212321223 - 2¹ = 223212321221 is a prime.

It is a super-3 number, since 3×223212321223³ (a number of 35 digits) contains 333 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 (223212321221) 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, 85611 + ... + 673612.

It is an arithmetic number, because the mean of its divisors is an integer number (55803343612).

Almost surely, 2^223212321223 is an apocalyptic number.

223212321223 is a deficient number, since it is larger than the sum of its proper divisors (1053225).

223212321223 is an equidigital number, since it uses as much as digits as its factorization.

223212321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053224.

The product of its digits is 3456, while the sum is 25.

Adding to 223212321223 its reverse (322123212322), we get a palindrome (545335533545).

The spelling of 223212321223 in words is "two hundred twenty-three billion, two hundred twelve million, three hundred twenty-one thousand, two hundred twenty-three".