11222343440 has 240 divisors, whose sum is σ = 33912829440. Its totient is φ = 3376665600.

The previous prime is 11222343427. The next prime is 11222343487. The reversal of 11222343440 is 4434322211.

It is a super-2 number, since 2×11222343440² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1962185 + ... + 1967895.

It is an arithmetic number, because the mean of its divisors is an integer number (141303456).

Almost surely, 2^11222343440 is an apocalyptic number.

11222343440 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 11222343440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16956414720).

11222343440 is an abundant number, since it is smaller than the sum of its proper divisors (22690486000).

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

11222343440 is a wasteful number, since it uses less digits than its factorization.

11222343440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782 (or 5765 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 11222343440 its reverse (4434322211), we get a palindrome (15656665651).

The spelling of 11222343440 in words is "eleven billion, two hundred twenty-two million, three hundred forty-three thousand, four hundred forty".