20201110002021 has 32 divisors (see below), whose sum is σ = 29180140093440. Its totient is φ = 12357158621184.

The previous prime is 20201110001993. The next prime is 20201110002049. The reversal of 20201110002021 is 12020001110202.

It is an interprime number because it is at equal distance from previous prime (20201110001993) and next prime (20201110002049).

It is not a de Polignac number, because 20201110002021 - 2²⁷ = 20200975784293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201110001988 and 20201110002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201110002061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34245445 + ... + 34830341.

It is an arithmetic number, because the mean of its divisors is an integer number (911879377920).

Almost surely, 2^{20201110002021} is an apocalyptic number.

It is an amenable number.

20201110002021 is a deficient number, since it is larger than the sum of its proper divisors (8979030091419).

20201110002021 is a wasteful number, since it uses less digits than its factorization.

20201110002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590205.

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

Adding to 20201110002021 its reverse (12020001110202), we get a palindrome (32221111112223).

The spelling of 20201110002021 in words is "twenty trillion, two hundred one billion, one hundred ten million, two thousand, twenty-one".