22331065240 has 64 divisors (see below), whose sum is σ = 57195797760. Its totient is φ = 7767323520.

The previous prime is 22331065213. The next prime is 22331065247. The reversal of 22331065240 is 4256013322.

It is a junction number, because it is equal to n+sod(n) for n = 22331065199 and 22331065208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331065247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093194 + ... + 1113433.

It is an arithmetic number, because the mean of its divisors is an integer number (893684340).

Almost surely, 2^22331065240 is an apocalyptic number.

22331065240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22331065240 is an abundant number, since it is smaller than the sum of its proper divisors (34864732520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22331065240 is a wasteful number, since it uses less digits than its factorization.

22331065240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206672 (or 2206668 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 22331065240 its reverse (4256013322), we get a palindrome (26587078562).

The spelling of 22331065240 in words is "twenty-two billion, three hundred thirty-one million, sixty-five thousand, two hundred forty".