20201121020000 has 120 divisors (see below), whose sum is σ = 51411506176800. Its totient is φ = 7801812032000.

The previous prime is 20201121019921. The next prime is 20201121020039. The reversal of 20201121020000 is 2012110202.

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 19 ways as a sum of consecutive naturals, for example, 16834760 + ... + 17994759.

It is an arithmetic number, because the mean of its divisors is an integer number (428429218140).

Almost surely, 2^{20201121020000} is an apocalyptic number.

20201121020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201121020000 is an abundant number, since it is smaller than the sum of its proper divisors (31210385156800).

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

20201121020000 is an equidigital number, since it uses as much as digits as its factorization.

20201121020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34829578 (or 34829555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20201121020000 its reverse (2012110202), we get a palindrome (20203133130202).

The spelling of 20201121020000 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, twenty thousand".