20212202204020 has 12 divisors (see below), whose sum is σ = 42445624628484. Its totient is φ = 8084880881600.

The previous prime is 20212202204003. The next prime is 20212202204027. The reversal of 20212202204020 is 2040220221202.

It can be written as a sum of positive squares in 2 ways, for example, as 7269505224804 + 12942696979216 = 2696202^2 + 3597596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212202204027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 505305055081 + ... + 505305055120.

It is an arithmetic number, because the mean of its divisors is an integer number (3537135385707).

Almost surely, 2^{20212202204020} is an apocalyptic number.

20212202204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212202204020 is an abundant number, since it is smaller than the sum of its proper divisors (22233422424464).

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

20212202204020 is a wasteful number, since it uses less digits than its factorization.

20212202204020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010610110210 (or 1010610110208 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20212202204020 its reverse (2040220221202), we get a palindrome (22252422425222).

The spelling of 20212202204020 in words is "twenty trillion, two hundred twelve billion, two hundred two million, two hundred four thousand, twenty".