20202132120020 has 72 divisors (see below), whose sum is σ = 44776588566024. Its totient is φ = 7655249947392.

The previous prime is 20202132120013. The next prime is 20202132120151. The reversal of 20202132120020 is 2002123120202.

It can be written as a sum of positive squares in 4 ways, for example, as 8701921809604 + 11500210310416 = 2949902^2 + 3391196^2 .

It is a super-2 number, since 2×20202132120020² (a number of 27 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 314853782 + ... + 314917938.

It is an arithmetic number, because the mean of its divisors is an integer number (621897063417).

Almost surely, 2^{20202132120020} is an apocalyptic number.

20202132120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202132120020 is an abundant number, since it is smaller than the sum of its proper divisors (24574456446004).

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

20202132120020 is a wasteful number, since it uses less digits than its factorization.

20202132120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107817 (or 107796 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20202132120020 its reverse (2002123120202), we get a palindrome (22204255240222).

The spelling of 20202132120020 in words is "twenty trillion, two hundred two billion, one hundred thirty-two million, one hundred twenty thousand, twenty".