33112221113 has 4 divisors (see below), whose sum is σ = 33210477300. Its totient is φ = 33013964928.

The previous prime is 33112221067. The next prime is 33112221151. The reversal of 33112221113 is 31112221133.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23319733264 + 9792487849 = 152708^2 + 98957^2 .

It is a cyclic number.

It is not a de Polignac number, because 33112221113 - 2²⁰ = 33111172537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33112221173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49127588 + ... + 49128261.

It is an arithmetic number, because the mean of its divisors is an integer number (8302619325).

Almost surely, 2^33112221113 is an apocalyptic number.

It is an amenable number.

33112221113 is a deficient number, since it is larger than the sum of its proper divisors (98256187).

33112221113 is an equidigital number, since it uses as much as digits as its factorization.

33112221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98256186.

The product of its digits is 216, while the sum is 20.

Adding to 33112221113 its sum of digits (20), we get a palindrome (33112221133).

Adding to 33112221113 its reverse (31112221133), we get a palindrome (64224442246).

The spelling of 33112221113 in words is "thirty-three billion, one hundred twelve million, two hundred twenty-one thousand, one hundred thirteen".