22220033240 has 64 divisors (see below), whose sum is σ = 50856120000. Its totient is φ = 8735178240.

The previous prime is 22220033239. The next prime is 22220033287. The reversal of 22220033240 is 4233002222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3776621 + ... + 3782499.

It is an arithmetic number, because the mean of its divisors is an integer number (794626875).

Almost surely, 2^22220033240 is an apocalyptic number.

22220033240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220033240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25428060000).

22220033240 is an abundant number, since it is smaller than the sum of its proper divisors (28636086760).

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

22220033240 is a wasteful number, since it uses less digits than its factorization.

22220033240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500 (or 7496 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 22220033240 its reverse (4233002222), we get a palindrome (26453035462).

The spelling of 22220033240 in words is "twenty-two billion, two hundred twenty million, thirty-three thousand, two hundred forty".