22204022331 has 4 divisors (see below), whose sum is σ = 29605363112. Its totient is φ = 14802681552.

The previous prime is 22204022317. The next prime is 22204022353. The reversal of 22204022331 is 13322040222.

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

It is not a de Polignac number, because 22204022331 - 2¹⁹ = 22203498043 is a prime.

It is a super-2 number, since 2×22204022331² (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 = 22204022298 and 22204022307.

It is not an unprimeable number, because it can be changed into a prime (22204022311) 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, 3700670386 + ... + 3700670391.

It is an arithmetic number, because the mean of its divisors is an integer number (7401340778).

Almost surely, 2^22204022331 is an apocalyptic number.

22204022331 is a deficient number, since it is larger than the sum of its proper divisors (7401340781).

22204022331 is an equidigital number, since it uses as much as digits as its factorization.

22204022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401340780.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22204022331 its reverse (13322040222), we get a palindrome (35526062553).

The spelling of 22204022331 in words is "twenty-two billion, two hundred four million, twenty-two thousand, three hundred thirty-one".