20001202112020 has 48 divisors (see below), whose sum is σ = 42136575860736. Its totient is φ = 7974979520000.

The previous prime is 20001202111997. The next prime is 20001202112051. The reversal of 20001202112020 is 2021120210002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8913660 + ... + 10929580.

It is an arithmetic number, because the mean of its divisors is an integer number (877845330432).

Almost surely, 2^{20001202112020} is an apocalyptic number.

20001202112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001202112020 is an abundant number, since it is smaller than the sum of its proper divisors (22135373748716).

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

20001202112020 is a wasteful number, since it uses less digits than its factorization.

20001202112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017512 (or 2017510 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20001202112020 its reverse (2021120210002), we get a palindrome (22022322322022).

The spelling of 20001202112020 in words is "twenty trillion, one billion, two hundred two million, one hundred twelve thousand, twenty".