11021443121400 has 96 divisors (see below), whose sum is σ = 34210674952560. Its totient is φ = 2935249239040.

The previous prime is 11021443121357. The next prime is 11021443121417. The reversal of 11021443121400 is 412134412011.

It is a happy number.

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

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 23 ways as a sum of consecutive naturals, for example, 11417877 + ... + 12345476.

Almost surely, 2^{11021443121400} is an apocalyptic number.

11021443121400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021443121400 is an abundant number, since it is smaller than the sum of its proper divisors (23189231831160).

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

11021443121400 is a wasteful number, since it uses less digits than its factorization.

11021443121400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23764145 (or 23764136 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 11021443121400 its reverse (412134412011), we get a palindrome (11433577533411).

The spelling of 11021443121400 in words is "eleven trillion, twenty-one billion, four hundred forty-three million, one hundred twenty-one thousand, four hundred".