11212320756 has 48 divisors (see below), whose sum is σ = 32199488384. Its totient is φ = 2957095296.

The previous prime is 11212320731. The next prime is 11212320797. The reversal of 11212320756 is 65702321211.

It is a super-2 number, since 2×11212320756² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 5132755 + ... + 5134938.

Almost surely, 2^11212320756 is an apocalyptic number.

It is an amenable number.

11212320756 is an abundant number, since it is smaller than the sum of its proper divisors (20987167628).

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

11212320756 is a wasteful number, since it uses less digits than its factorization.

11212320756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267720 (or 10267718 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 11212320756 its reverse (65702321211), we get a palindrome (76914641967).

The spelling of 11212320756 in words is "eleven billion, two hundred twelve million, three hundred twenty thousand, seven hundred fifty-six".