11221001400 has 96 divisors (see below), whose sum is σ = 39754419840. Its totient is φ = 2564799360.

The previous prime is 11221001357. The next prime is 11221001443. The reversal of 11221001400 is 410012211.

It is a happy number.

11221001400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11221001357) and next prime (11221001443).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 1331634 + ... + 1340033.

It is an arithmetic number, because the mean of its divisors is an integer number (414108540).

Almost surely, 2^11221001400 is an apocalyptic number.

11221001400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221001400 is an abundant number, since it is smaller than the sum of its proper divisors (28533418440).

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

11221001400 is a wasteful number, since it uses less digits than its factorization.

11221001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671693 (or 2671684 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11221001400 its reverse (410012211), we get a palindrome (11631013611).

The spelling of 11221001400 in words is "eleven billion, two hundred twenty-one million, one thousand, four hundred".