20022000022440 has 96 divisors (see below), whose sum is σ = 70077000094920. Its totient is φ = 4928492312064.

The previous prime is 20022000022393. The next prime is 20022000022441. The reversal of 20022000022440 is 4422000022002.

20022000022440 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 200 + 0 + 0 + 22 + 440 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12172241787876 + 7849758234564 = 3488874^2 + 2801742^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20022000022441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2139097887 + ... + 2139107246.

Almost surely, 2^{20022000022440} is an apocalyptic number.

20022000022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022000022440 is an abundant number, since it is smaller than the sum of its proper divisors (50055000072480).

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

20022000022440 is a wasteful number, since it uses less digits than its factorization.

20022000022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278205163 (or 4278205156 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20022000022440 its reverse (4422000022002), we get a palindrome (24444000044442).

The spelling of 20022000022440 in words is "twenty trillion, twenty-two billion, twenty-two thousand, four hundred forty".