1133113122221 has 8 divisors (see below), whose sum is σ = 1133643107520. Its totient is φ = 1132583224608.

The previous prime is 1133113122217. The next prime is 1133113122277. The reversal of 1133113122221 is 1222213113311.

It is a happy number.

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 1133113122221 - 2² = 1133113122217 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 (1133113122721) 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, 49951760 + ... + 49974438.

It is an arithmetic number, because the mean of its divisors is an integer number (141705388440).

Almost surely, 2^{1133113122221} is an apocalyptic number.

It is an amenable number.

1133113122221 is a deficient number, since it is larger than the sum of its proper divisors (529985299).

1133113122221 is a wasteful number, since it uses less digits than its factorization.

1133113122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43843.

The product of its digits is 432, while the sum is 23.

Adding to 1133113122221 its reverse (1222213113311), we get a palindrome (2355326235532).

The spelling of 1133113122221 in words is "one trillion, one hundred thirty-three billion, one hundred thirteen million, one hundred twenty-two thousand, two hundred twenty-one".