20002100201121 has 48 divisors (see below), whose sum is σ = 27885465216000. Its totient is φ = 12742318803456.

The previous prime is 20002100201107. The next prime is 20002100201129. The reversal of 20002100201121 is 12110200120002.

It is not a de Polignac number, because 20002100201121 - 2³⁷ = 19864661247649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002100201097 and 20002100201106.

It is not an unprimeable number, because it can be changed into a prime (20002100201129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219278080 + ... + 219369278.

It is an arithmetic number, because the mean of its divisors is an integer number (580947192000).

Almost surely, 2^{20002100201121} is an apocalyptic number.

It is an amenable number.

20002100201121 is a deficient number, since it is larger than the sum of its proper divisors (7883365014879).

20002100201121 is an equidigital number, since it uses as much as digits as its factorization.

20002100201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91626 (or 91477 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20002100201121 its reverse (12110200120002), we get a palindrome (32112300321123).

The spelling of 20002100201121 in words is "twenty trillion, two billion, one hundred million, two hundred one thousand, one hundred twenty-one".