20210120021001 has 8 divisors (see below), whose sum is σ = 27349018138144. Its totient is φ = 13272317625600.

The previous prime is 20210120020997. The next prime is 20210120021057. The reversal of 20210120021001 is 10012002101202.

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

It is not a de Polignac number, because 20210120021001 - 2² = 20210120020997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210120020001) 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, 50273930200 + ... + 50273930601.

It is an arithmetic number, because the mean of its divisors is an integer number (3418627267268).

Almost surely, 2^{20210120021001} is an apocalyptic number.

It is an amenable number.

20210120021001 is a deficient number, since it is larger than the sum of its proper divisors (7138898117143).

20210120021001 is a wasteful number, since it uses less digits than its factorization.

20210120021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100547860871.

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

Adding to 20210120021001 its reverse (10012002101202), we get a palindrome (30222122122203).

The spelling of 20210120021001 in words is "twenty trillion, two hundred ten billion, one hundred twenty million, twenty-one thousand, one".