11212480 has 56 divisors (see below), whose sum is σ = 27450288. Its totient is φ = 4359168.

The previous prime is 11212447. The next prime is 11212501. The reversal of 11212480 is 8421211.

It is a happy number.

11212480 is a nontrivial binomial coefficient, being equal to C(4736, 2).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11367 + ... + 12313.

Almost surely, 2^11212480 is an apocalyptic number.

11212480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212480 is the 4735-th triangular number and also the 2368-th hexagonal number.

11212480 is the 1579-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13725144).

11212480 is an abundant number, since it is smaller than the sum of its proper divisors (16237808).

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

11212480 is an equidigital number, since it uses as much as digits as its factorization.

11212480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 11212480 is about 3348.5041436438. The cubic root of 11212480 is about 223.8208601758.

Adding to 11212480 its reverse (8421211), we get a palindrome (19633691).

The spelling of 11212480 in words is "eleven million, two hundred twelve thousand, four hundred eighty".