11222111112123 has 8 divisors (see below), whose sum is σ = 14962859675136. Its totient is φ = 7481384978600.

The previous prime is 11222111112019. The next prime is 11222111112151. The reversal of 11222111112123 is 32121111122211.

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 11222111112123 - 2²¹ = 11222109014971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11222111112123.

It is not an unprimeable number, because it can be changed into a prime (11222111112323) 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, 4402983 + ... + 6467648.

It is an arithmetic number, because the mean of its divisors is an integer number (1870357459392).

Almost surely, 2^{11222111112123} is an apocalyptic number.

11222111112123 is a deficient number, since it is larger than the sum of its proper divisors (3740748563013).

11222111112123 is a wasteful number, since it uses less digits than its factorization.

11222111112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214745.

The product of its digits is 96, while the sum is 21.

Adding to 11222111112123 its reverse (32121111122211), we get a palindrome (43343222234334).

The spelling of 11222111112123 in words is "eleven trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twelve thousand, one hundred twenty-three".