11212140044 has 48 divisors (see below), whose sum is σ = 23049687360. Its totient is φ = 4671406080.

The previous prime is 11212140029. The next prime is 11212140053. The reversal of 11212140044 is 44004121211.

It is a junction number, because it is equal to n+sod(n) for n = 11212139998 and 11212140025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455884 + ... + 1463564.

It is an arithmetic number, because the mean of its divisors is an integer number (480201820).

Almost surely, 2^11212140044 is an apocalyptic number.

11212140044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212140044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11524843680).

11212140044 is an abundant number, since it is smaller than the sum of its proper divisors (11837547316).

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

11212140044 is a wasteful number, since it uses less digits than its factorization.

11212140044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9138 (or 9136 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11212140044 its reverse (44004121211), we get a palindrome (55216261255).

The spelling of 11212140044 in words is "eleven billion, two hundred twelve million, one hundred forty thousand, forty-four".