11442201221 has 8 divisors (see below), whose sum is σ = 12605990688. Its totient is φ = 10299010000.

The previous prime is 11442201191. The next prime is 11442201233. The reversal of 11442201221 is 12210224411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11442201221 - 2¹⁸ = 11441939077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11442201193 and 11442201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442200221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148395 + ... + 5150616.

It is an arithmetic number, because the mean of its divisors is an integer number (1575748836).

Almost surely, 2^11442201221 is an apocalyptic number.

11442201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11442201221 is a deficient number, since it is larger than the sum of its proper divisors (1163789467).

11442201221 is a wasteful number, since it uses less digits than its factorization.

11442201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10299123.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11442201221 its reverse (12210224411), we get a palindrome (23652425632).

The spelling of 11442201221 in words is "eleven billion, four hundred forty-two million, two hundred one thousand, two hundred twenty-one".