22020233240 has 16 divisors (see below), whose sum is σ = 49545524880. Its totient is φ = 8808093280.

The previous prime is 22020233233. The next prime is 22020233267. The reversal of 22020233240 is 4233202022.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275252876 + ... + 275252955.

It is an arithmetic number, because the mean of its divisors is an integer number (3096595305).

Almost surely, 2^22020233240 is an apocalyptic number.

22020233240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020233240 is an abundant number, since it is smaller than the sum of its proper divisors (27525291640).

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

22020233240 is a wasteful number, since it uses less digits than its factorization.

22020233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550505842 (or 550505838 counting only the distinct ones).

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

Adding to 22020233240 its reverse (4233202022), we get a palindrome (26253435262).

The spelling of 22020233240 in words is "twenty-two billion, twenty million, two hundred thirty-three thousand, two hundred forty".