233022220331 has 4 divisors (see below), whose sum is σ = 234586128000. Its totient is φ = 231458312664.

The previous prime is 233022220297. The next prime is 233022220357. The reversal of 233022220331 is 133022220332.

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-233022220331 is a prime.

It is a super-2 number, since 2×233022220331² (a number of 24 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 = 233022220297 and 233022220306.

It is not an unprimeable number, because it can be changed into a prime (233022220231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781953611 + ... + 781953908.

It is an arithmetic number, because the mean of its divisors is an integer number (58646532000).

Almost surely, 2^233022220331 is an apocalyptic number.

233022220331 is a deficient number, since it is larger than the sum of its proper divisors (1563907669).

233022220331 is a wasteful number, since it uses less digits than its factorization.

233022220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563907668.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 233022220331 its reverse (133022220332), we get a palindrome (366044440663).

Subtracting from 233022220331 its reverse (133022220332), we obtain a palindrome (99999999999).

The spelling of 233022220331 in words is "two hundred thirty-three billion, twenty-two million, two hundred twenty thousand, three hundred thirty-one".