11222001123 has 4 divisors (see below), whose sum is σ = 14962668168. Its totient is φ = 7481334080.

The previous prime is 11222001083. The next prime is 11222001137. The reversal of 11222001123 is 32110022211.

11222001123 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 a cyclic number.

It is not a de Polignac number, because 11222001123 - 2⁶ = 11222001059 is a prime.

It is a super-2 number, since 2×11222001123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11222001523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870333518 + ... + 1870333523.

It is an arithmetic number, because the mean of its divisors is an integer number (3740667042).

Almost surely, 2^11222001123 is an apocalyptic number.

11222001123 is a deficient number, since it is larger than the sum of its proper divisors (3740667045).

11222001123 is an equidigital number, since it uses as much as digits as its factorization.

11222001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740667044.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11222001123 its reverse (32110022211), we get a palindrome (43332023334).

The spelling of 11222001123 in words is "eleven billion, two hundred twenty-two million, one thousand, one hundred twenty-three".