11133101212221 has 8 divisors (see below), whose sum is σ = 14855371998784. Its totient is φ = 7416448950240.

The previous prime is 11133101212213. The next prime is 11133101212223. The reversal of 11133101212221 is 12221210133111.

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

It is not a de Polignac number, because 11133101212221 - 2³ = 11133101212213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133101212223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404626521 + ... + 1404634446.

It is an arithmetic number, because the mean of its divisors is an integer number (1856921499848).

Almost surely, 2^{11133101212221} is an apocalyptic number.

It is an amenable number.

11133101212221 is a deficient number, since it is larger than the sum of its proper divisors (3722270786563).

11133101212221 is a wasteful number, since it uses less digits than its factorization.

11133101212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809262291.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 11133101212221 its reverse (12221210133111), we get a palindrome (23354311345332).

The spelling of 11133101212221 in words is "eleven trillion, one hundred thirty-three billion, one hundred one million, two hundred twelve thousand, two hundred twenty-one".