11011221133 has 8 divisors (see below), whose sum is σ = 12046274496. Its totient is φ = 9981840000.

The previous prime is 11011221131. The next prime is 11011221191. The reversal of 11011221133 is 33112211011.

It is a happy number.

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

It is not a de Polignac number, because 11011221133 - 2¹ = 11011221131 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 (11011221131) 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, 1413993 + ... + 1421758.

It is an arithmetic number, because the mean of its divisors is an integer number (1505784312).

Almost surely, 2^11011221133 is an apocalyptic number.

It is an amenable number.

11011221133 is a deficient number, since it is larger than the sum of its proper divisors (1035053363).

11011221133 is a wasteful number, since it uses less digits than its factorization.

11011221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836115.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11011221133 its reverse (33112211011), we get a palindrome (44123432144).

The spelling of 11011221133 in words is "eleven billion, eleven million, two hundred twenty-one thousand, one hundred thirty-three".