11111233122 has 24 divisors (see below), whose sum is σ = 26262915120. Its totient is φ = 3367040280.

The previous prime is 11111233121. The next prime is 11111233141. The reversal of 11111233122 is 22133211111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11111233095 and 11111233104.

It is not an unprimeable number, because it can be changed into a prime (11111233121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28058472 + ... + 28058867.

It is an arithmetic number, because the mean of its divisors is an integer number (1094288130).

Almost surely, 2^11111233122 is an apocalyptic number.

11111233122 is an abundant number, since it is smaller than the sum of its proper divisors (15151681998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111233122 is a wasteful number, since it uses less digits than its factorization.

11111233122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56117358 (or 56117355 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11111233122 its reverse (22133211111), we get a palindrome (33244444233).

The spelling of 11111233122 in words is "eleven billion, one hundred eleven million, two hundred thirty-three thousand, one hundred twenty-two".