111223321211 has 8 divisors (see below), whose sum is σ = 112106618400. Its totient is φ = 110343481920.

The previous prime is 111223321199. The next prime is 111223321213. The reversal of 111223321211 is 112123322111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111223321211 - 2²⁶ = 111156212347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111223321213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799871 + ... + 928568.

It is an arithmetic number, because the mean of its divisors is an integer number (14013327300).

Almost surely, 2^111223321211 is an apocalyptic number.

111223321211 is a deficient number, since it is larger than the sum of its proper divisors (883297189).

111223321211 is a wasteful number, since it uses less digits than its factorization.

111223321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728949.

The product of its digits is 144, while the sum is 20.

Adding to 111223321211 its reverse (112123322111), we get a palindrome (223346643322).

It can be divided in two parts, 11122 and 3321211, that added together give a palindrome (3332333).

The spelling of 111223321211 in words is "one hundred eleven billion, two hundred twenty-three million, three hundred twenty-one thousand, two hundred eleven".