11221110123 has 8 divisors (see below), whose sum is σ = 15056776848. Its totient is φ = 7433091744.

The previous prime is 11221110031. The next prime is 11221110191. The reversal of 11221110123 is 32101112211.

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

It is not a de Polignac number, because 11221110123 - 2¹⁰ = 11221109099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221115123) 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, 11911536 + ... + 11912477.

It is an arithmetic number, because the mean of its divisors is an integer number (1882097106).

Almost surely, 2^11221110123 is an apocalyptic number.

11221110123 is a deficient number, since it is larger than the sum of its proper divisors (3835666725).

11221110123 is a wasteful number, since it uses less digits than its factorization.

11221110123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23824173.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11221110123 its reverse (32101112211), we get a palindrome (43322222334).

The spelling of 11221110123 in words is "eleven billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-three".