22111140012 has 72 divisors (see below), whose sum is σ = 56201999616. Its totient is φ = 6762585024.

The previous prime is 22111139983. The next prime is 22111140031. The reversal of 22111140012 is 21004111122.

It is a junction number, because it is equal to n+sod(n) for n = 22111139973 and 22111140000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306033 + ... + 371319.

It is an arithmetic number, because the mean of its divisors is an integer number (780583328).

Almost surely, 2^22111140012 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 22111140012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28100999808).

22111140012 is an abundant number, since it is smaller than the sum of its proper divisors (34090859604).

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

22111140012 is a wasteful number, since it uses less digits than its factorization.

22111140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65487 (or 65472 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111140012 its reverse (21004111122), we get a palindrome (43115251134).

The spelling of 22111140012 in words is "twenty-two billion, one hundred eleven million, one hundred forty thousand, twelve".