11224213440 has 448 divisors, whose sum is σ = 41696640000. Its totient is φ = 2530344960.

The previous prime is 11224213411. The next prime is 11224213471. The reversal of 11224213440 is 4431242211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11224213440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8985936 + ... + 8987184.

Almost surely, 2^11224213440 is an apocalyptic number.

11224213440 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 11224213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20848320000).

11224213440 is an abundant number, since it is smaller than the sum of its proper divisors (30472426560).

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

11224213440 is a wasteful number, since it uses less digits than its factorization.

11224213440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11224213440 its reverse (4431242211), we get a palindrome (15655455651).

The spelling of 11224213440 in words is "eleven billion, two hundred twenty-four million, two hundred thirteen thousand, four hundred forty".