22311122112 has 140 divisors (see below), whose sum is σ = 66260659960. Its totient is φ = 7423156224.

The previous prime is 22311122083. The next prime is 22311122143. The reversal of 22311122112 is 21122111322.

It is a super-3 number, since 3×22311122112³ (a number of 32 digits) contains 333 as substring.

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 and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2987439 + ... + 2994897.

Almost surely, 2^22311122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22311122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33130329980).

22311122112 is an abundant number, since it is smaller than the sum of its proper divisors (43949537848).

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

22311122112 is an equidigital number, since it uses as much as digits as its factorization.

22311122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060 (or 8041 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 22311122112 its reverse (21122111322), we get a palindrome (43433233434).

The spelling of 22311122112 in words is "twenty-two billion, three hundred eleven million, one hundred twenty-two thousand, one hundred twelve".