11212277340 has 144 divisors (see below), whose sum is σ = 36146597760. Its totient is φ = 2575013760.

The previous prime is 11212277311. The next prime is 11212277353. The reversal of 11212277340 is 4377221211.

11212277340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11212277298 and 11212277307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214731 + ... + 261789.

It is an arithmetic number, because the mean of its divisors is an integer number (251018040).

Almost surely, 2^11212277340 is an apocalyptic number.

11212277340 is a gapful number since it is divisible by the number (10) 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 11212277340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18073298880).

11212277340 is an abundant number, since it is smaller than the sum of its proper divisors (24934320420).

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

11212277340 is a wasteful number, since it uses less digits than its factorization.

11212277340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47120 (or 47099 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

Adding to 11212277340 its reverse (4377221211), we get a palindrome (15589498551).

The spelling of 11212277340 in words is "eleven billion, two hundred twelve million, two hundred seventy-seven thousand, three hundred forty".