202011000020021 has 8 divisors (see below), whose sum is σ = 204869570759040. Its totient is φ = 199154896761312.

The previous prime is 202011000019949. The next prime is 202011000020051. The reversal of 202011000020021 is 120020000110202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202011000020021 - 2³⁸ = 201736122113077 is a prime.

It is a super-3 number, since 3×202011000020021³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202011000019984 and 202011000020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011000020051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616705181 + ... + 617032658.

It is an arithmetic number, because the mean of its divisors is an integer number (25608696344880).

Almost surely, 2^{202011000020021} is an apocalyptic number.

It is an amenable number.

202011000020021 is a deficient number, since it is larger than the sum of its proper divisors (2858570739019).

202011000020021 is a wasteful number, since it uses less digits than its factorization.

202011000020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233740155.

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

Adding to 202011000020021 its reverse (120020000110202), we get a palindrome (322031000130223).

The spelling of 202011000020021 in words is "two hundred two trillion, eleven billion, twenty thousand, twenty-one".