33222042331 has 4 divisors (see below), whose sum is σ = 33259667272. Its totient is φ = 33184417392.

The previous prime is 33222042263. The next prime is 33222042341. The reversal of 33222042331 is 13324022233.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33222042331 is a prime.

It is a super-2 number, since 2×33222042331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33222042296 and 33222042305.

It is not an unprimeable number, because it can be changed into a prime (33222042341) 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, 18811146 + ... + 18812911.

It is an arithmetic number, because the mean of its divisors is an integer number (8314916818).

Almost surely, 2^33222042331 is an apocalyptic number.

33222042331 is a deficient number, since it is larger than the sum of its proper divisors (37624941).

33222042331 is an equidigital number, since it uses as much as digits as its factorization.

33222042331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37624940.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 33222042331 its reverse (13324022233), we get a palindrome (46546064564).

The spelling of 33222042331 in words is "thirty-three billion, two hundred twenty-two million, forty-two thousand, three hundred thirty-one".