2021020012001 has 8 divisors (see below), whose sum is σ = 2025504223104. Its totient is φ = 2016537171840.

The previous prime is 2021020011953. The next prime is 2021020012003. The reversal of 2021020012001 is 1002100201202.

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 a de Polignac number, because none of the positive numbers 2^k-2021020012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021020012003) 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, 2637596 + ... + 3316466.

It is an arithmetic number, because the mean of its divisors is an integer number (253188027888).

Almost surely, 2^{2021020012001} is an apocalyptic number.

It is an amenable number.

2021020012001 is a deficient number, since it is larger than the sum of its proper divisors (4484211103).

2021020012001 is an equidigital number, since it uses as much as digits as its factorization.

2021020012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685471.

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

Adding to 2021020012001 its reverse (1002100201202), we get a palindrome (3023120213203).

The spelling of 2021020012001 in words is "two trillion, twenty-one billion, twenty million, twelve thousand, one".