11221203133221 has 16 divisors (see below), whose sum is σ = 15144796447488. Its totient is φ = 7389549656000.

The previous prime is 11221203133213. The next prime is 11221203133223. The reversal of 11221203133221 is 12233130212211.

It is a cyclic number.

It is not a de Polignac number, because 11221203133221 - 2³ = 11221203133213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11221203133191 and 11221203133200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221203133223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42831906 + ... + 43093091.

It is an arithmetic number, because the mean of its divisors is an integer number (946549777968).

Almost surely, 2^{11221203133221} is an apocalyptic number.

It is an amenable number.

11221203133221 is a deficient number, since it is larger than the sum of its proper divisors (3923593314267).

11221203133221 is a wasteful number, since it uses less digits than its factorization.

11221203133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85925532.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11221203133221 its reverse (12233130212211), we get a palindrome (23454333345432).

The spelling of 11221203133221 in words is "eleven trillion, two hundred twenty-one billion, two hundred three million, one hundred thirty-three thousand, two hundred twenty-one".