222011131123 has 4 divisors (see below), whose sum is σ = 227174180728. Its totient is φ = 216848081520.

The previous prime is 222011131109. The next prime is 222011131207. The reversal of 222011131123 is 321131110222.

222011131123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 222011131123 - 2⁵ = 222011131091 is a prime.

It is a super-2 number, since 2×222011131123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222011131123.

It is not an unprimeable number, because it can be changed into a prime (222011134123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2581524738 + ... + 2581524823.

It is an arithmetic number, because the mean of its divisors is an integer number (56793545182).

Almost surely, 2^222011131123 is an apocalyptic number.

222011131123 is a deficient number, since it is larger than the sum of its proper divisors (5163049605).

222011131123 is an equidigital number, since it uses as much as digits as its factorization.

222011131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163049604.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 222011131123 its reverse (321131110222), we get a palindrome (543142241345).

The spelling of 222011131123 in words is "two hundred twenty-two billion, eleven million, one hundred thirty-one thousand, one hundred twenty-three".