22131111103 has 4 divisors (see below), whose sum is σ = 22279642200. Its totient is φ = 21982580008.

The previous prime is 22131111089. The next prime is 22131111131. The reversal of 22131111103 is 30111113122.

It is a happy number.

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 22131111103 - 2¹⁷ = 22130980031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131111703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74265325 + ... + 74265622.

It is an arithmetic number, because the mean of its divisors is an integer number (5569910550).

Almost surely, 2^22131111103 is an apocalyptic number.

22131111103 is a deficient number, since it is larger than the sum of its proper divisors (148531097).

22131111103 is a wasteful number, since it uses less digits than its factorization.

22131111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148531096.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 22131111103 its reverse (30111113122), we get a palindrome (52242224225).

The spelling of 22131111103 in words is "twenty-two billion, one hundred thirty-one million, one hundred eleven thousand, one hundred three".