20022120200020 has 12 divisors (see below), whose sum is σ = 42046452420084. Its totient is φ = 8008848080000.

The previous prime is 20022120200011. The next prime is 20022120200107. The reversal of 20022120200020 is 2000202122002.

It can be written as a sum of positive squares in 2 ways, for example, as 4867574362564 + 15154545837456 = 2206258^2 + 3892884^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 500553004981 + ... + 500553005020.

It is an arithmetic number, because the mean of its divisors is an integer number (3503871035007).

Almost surely, 2^{20022120200020} is an apocalyptic number.

20022120200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022120200020 is an abundant number, since it is smaller than the sum of its proper divisors (22024332220064).

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

20022120200020 is a wasteful number, since it uses less digits than its factorization.

20022120200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001106010010 (or 1001106010008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20022120200020 its reverse (2000202122002), we get a palindrome (22022322322022).

The spelling of 20022120200020 in words is "twenty trillion, twenty-two billion, one hundred twenty million, two hundred thousand, twenty".