111122133331 has 4 divisors (see below), whose sum is σ = 121224145464. Its totient is φ = 101020121200.

The previous prime is 111122133313. The next prime is 111122133341. The reversal of 111122133331 is 133331221111.

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 111122133331 - 2¹⁵ = 111122100563 is a prime.

It is a super-2 number, since 2×111122133331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111122133341) 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, 5051006050 + ... + 5051006071.

It is an arithmetic number, because the mean of its divisors is an integer number (30306036366).

Almost surely, 2^111122133331 is an apocalyptic number.

111122133331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111122133331 is a deficient number, since it is larger than the sum of its proper divisors (10102012133).

111122133331 is a wasteful number, since it uses less digits than its factorization.

111122133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102012132.

The product of its digits is 324, while the sum is 22.

Adding to 111122133331 its reverse (133331221111), we get a palindrome (244453354442).

The spelling of 111122133331 in words is "one hundred eleven billion, one hundred twenty-two million, one hundred thirty-three thousand, three hundred thirty-one".