20002011102021 has 16 divisors (see below), whose sum is σ = 28723616558336. Its totient is φ = 12307738435776.

The previous prime is 20002011101993. The next prime is 20002011102067. The reversal of 20002011102021 is 12020111020002.

It is not a de Polignac number, because 20002011102021 - 2¹⁹ = 20002010577733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002011101988 and 20002011102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002011102221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24414205 + ... + 25220178.

It is an arithmetic number, because the mean of its divisors is an integer number (1795226034896).

Almost surely, 2^{20002011102021} is an apocalyptic number.

It is an amenable number.

20002011102021 is a deficient number, since it is larger than the sum of its proper divisors (8721605456315).

20002011102021 is a wasteful number, since it uses less digits than its factorization.

20002011102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49644732.

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

Adding to 20002011102021 its reverse (12020111020002), we get a palindrome (32022122122023).

The spelling of 20002011102021 in words is "twenty trillion, two billion, eleven million, one hundred two thousand, twenty-one".