223211213311 has 4 divisors (see below), whose sum is σ = 223214317624. Its totient is φ = 223208109000.

The previous prime is 223211213249. The next prime is 223211213321. The reversal of 223211213311 is 113312112322.

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 223211213311 - 2⁹ = 223211212799 is a prime.

It is a super-3 number, since 3×223211213311³ (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 (223211213321) 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, 1441680 + ... + 1588981.

It is an arithmetic number, because the mean of its divisors is an integer number (55803579406).

Almost surely, 2^223211213311 is an apocalyptic number.

223211213311 is a deficient number, since it is larger than the sum of its proper divisors (3104313).

223211213311 is an equidigital number, since it uses as much as digits as its factorization.

223211213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104312.

The product of its digits is 432, while the sum is 22.

Adding to 223211213311 its reverse (113312112322), we get a palindrome (336523325633).

The spelling of 223211213311 in words is "two hundred twenty-three billion, two hundred eleven million, two hundred thirteen thousand, three hundred eleven".