20202001212021 has 8 divisors (see below), whose sum is σ = 27864829258080. Its totient is φ = 13003586986992.

The previous prime is 20202001212013. The next prime is 20202001212073. The reversal of 20202001212021 is 12021210020202.

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

It is not a de Polignac number, because 20202001212021 - 2³ = 20202001212013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202001212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116103455155 + ... + 116103455328.

It is an arithmetic number, because the mean of its divisors is an integer number (3483103657260).

Almost surely, 2^{20202001212021} is an apocalyptic number.

It is an amenable number.

20202001212021 is a deficient number, since it is larger than the sum of its proper divisors (7662828046059).

20202001212021 is a wasteful number, since it uses less digits than its factorization.

20202001212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232206910515.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20202001212021 its reverse (12021210020202), we get a palindrome (32223211232223).

The spelling of 20202001212021 in words is "twenty trillion, two hundred two billion, one million, two hundred twelve thousand, twenty-one".