11221200321 has 16 divisors (see below), whose sum is σ = 15635288064. Its totient is φ = 7151359824.

The previous prime is 11221200313. The next prime is 11221200337. The reversal of 11221200321 is 12300212211.

It is not a de Polignac number, because 11221200321 - 2³ = 11221200313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11221200321.

It is not an unprimeable number, because it can be changed into a prime (11221220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919321 + ... + 931446.

It is an arithmetic number, because the mean of its divisors is an integer number (977205504).

Almost surely, 2^11221200321 is an apocalyptic number.

It is an amenable number.

11221200321 is a deficient number, since it is larger than the sum of its proper divisors (4414087743).

11221200321 is a wasteful number, since it uses less digits than its factorization.

11221200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850860.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11221200321 its reverse (12300212211), we get a palindrome (23521412532).

The spelling of 11221200321 in words is "eleven billion, two hundred twenty-one million, two hundred thousand, three hundred twenty-one".