20020012102021 has 8 divisors (see below), whose sum is σ = 20157710666400. Its totient is φ = 19882358018832.

The previous prime is 20020012102007. The next prime is 20020012102043. The reversal of 20020012102021 is 12020121002002.

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 20020012102021 - 2³⁷ = 19882573148549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020012101992 and 20020012102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020012102921) 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, 10216795 + ... + 12017608.

It is an arithmetic number, because the mean of its divisors is an integer number (2519713833300).

Almost surely, 2^{20020012102021} is an apocalyptic number.

It is an amenable number.

20020012102021 is a deficient number, since it is larger than the sum of its proper divisors (137698564379).

20020012102021 is a wasteful number, since it uses less digits than its factorization.

20020012102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22240595.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20020012102021 its reverse (12020121002002), we get a palindrome (32040133104023).

The spelling of 20020012102021 in words is "twenty trillion, twenty billion, twelve million, one hundred two thousand, twenty-one".