11220443454 has 32 divisors (see below), whose sum is σ = 24484953600. Its totient is φ = 3399580800.

The previous prime is 11220443417. The next prime is 11220443471. The reversal of 11220443454 is 45434402211.

11220443454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11220443454² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 597894 + ... + 616374.

It is an arithmetic number, because the mean of its divisors is an integer number (765154800).

Almost surely, 2^11220443454 is an apocalyptic number.

11220443454 is an abundant number, since it is smaller than the sum of its proper divisors (13264510146).

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

11220443454 is a wasteful number, since it uses less digits than its factorization.

11220443454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 11220443454 its reverse (45434402211), we get a palindrome (56654845665).

The spelling of 11220443454 in words is "eleven billion, two hundred twenty million, four hundred forty-three thousand, four hundred fifty-four".