22220320331 has 24 divisors (see below), whose sum is σ = 25414627392. Its totient is φ = 19397206400.

The previous prime is 22220320327. The next prime is 22220320333. The reversal of 22220320331 is 13302302222.

It is not a de Polignac number, because 22220320331 - 2² = 22220320327 is a prime.

It is a super-2 number, since 2×22220320331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22220320333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264551 + ... + 338271.

It is an arithmetic number, because the mean of its divisors is an integer number (1058942808).

Almost surely, 2^22220320331 is an apocalyptic number.

22220320331 is a deficient number, since it is larger than the sum of its proper divisors (3194307061).

22220320331 is a wasteful number, since it uses less digits than its factorization.

22220320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73843 (or 73832 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22220320331 its reverse (13302302222), we get a palindrome (35522622553).

The spelling of 22220320331 in words is "twenty-two billion, two hundred twenty million, three hundred twenty thousand, three hundred thirty-one".