111211122202223 has 16 divisors (see below), whose sum is σ = 114989384111616. Its totient is φ = 107492692816320.

The previous prime is 111211122202097. The next prime is 111211122202283. The reversal of 111211122202223 is 322202221112111.

It is not a de Polignac number, because 111211122202223 - 2¹⁰ = 111211122201199 is a prime.

It is a super-2 number, since 2×111211122202223² (a number of 29 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 (111211122202283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4857668 + ... + 15684998.

It is an arithmetic number, because the mean of its divisors is an integer number (7186836506976).

Almost surely, 2^{111211122202223} is an apocalyptic number.

111211122202223 is a deficient number, since it is larger than the sum of its proper divisors (3778261909393).

111211122202223 is a wasteful number, since it uses less digits than its factorization.

111211122202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10830094.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 111211122202223 its reverse (322202221112111), we get a palindrome (433413343314334).

The spelling of 111211122202223 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-three".