20022311333440 has 56 divisors (see below), whose sum is σ = 51345677247480. Its totient is φ = 7392853413888.

The previous prime is 20022311333333. The next prime is 20022311333477. The reversal of 20022311333440 is 4433311322002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3328026706944 + 16694284626496 = 1824288^2 + 4085864^2 .

It is a super-2 number, since 2×20022311333440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20022311333399 and 20022311333408.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2406523645 + ... + 2406531964.

It is an arithmetic number, because the mean of its divisors is an integer number (916887093705).

Almost surely, 2^{20022311333440} is an apocalyptic number.

20022311333440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022311333440 is an abundant number, since it is smaller than the sum of its proper divisors (31323365914040).

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

20022311333440 is a wasteful number, since it uses less digits than its factorization.

20022311333440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813055639 (or 4813055629 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20022311333440 its reverse (4433311322002), we get a palindrome (24455622655442).

The spelling of 20022311333440 in words is "twenty trillion, twenty-two billion, three hundred eleven million, three hundred thirty-three thousand, four hundred forty".