22133020231 has 4 divisors (see below), whose sum is σ = 25294880272. Its totient is φ = 18971160192.

The previous prime is 22133020223. The next prime is 22133020237. The reversal of 22133020231 is 13202033122.

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

It is a cyclic number.

It is not a de Polignac number, because 22133020231 - 2³ = 22133020223 is a prime.

It is a super-2 number, since 2×22133020231² (a number of 21 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 = 22133020199 and 22133020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22133020237) 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, 1580930010 + ... + 1580930023.

It is an arithmetic number, because the mean of its divisors is an integer number (6323720068).

Almost surely, 2^22133020231 is an apocalyptic number.

22133020231 is a deficient number, since it is larger than the sum of its proper divisors (3161860041).

22133020231 is an equidigital number, since it uses as much as digits as its factorization.

22133020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161860040.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22133020231 its reverse (13202033122), we get a palindrome (35335053353).

The spelling of 22133020231 in words is "twenty-two billion, one hundred thirty-three million, twenty thousand, two hundred thirty-one".