22004332331 has 4 divisors (see below), whose sum is σ = 22144487472. Its totient is φ = 21864177192.

The previous prime is 22004332327. The next prime is 22004332351. The reversal of 22004332331 is 13323340022.

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 22004332331 - 2² = 22004332327 is a prime.

It is a super-2 number, since 2×22004332331² (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 = 22004332297 and 22004332306.

It is not an unprimeable number, because it can be changed into a prime (22004332351) 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, 70077335 + ... + 70077648.

It is an arithmetic number, because the mean of its divisors is an integer number (5536121868).

Almost surely, 2^22004332331 is an apocalyptic number.

22004332331 is a deficient number, since it is larger than the sum of its proper divisors (140155141).

22004332331 is a wasteful number, since it uses less digits than its factorization.

22004332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140155140.

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

Adding to 22004332331 its reverse (13323340022), we get a palindrome (35327672353).

The spelling of 22004332331 in words is "twenty-two billion, four million, three hundred thirty-two thousand, three hundred thirty-one".