20210011002001 has 16 divisors (see below), whose sum is σ = 21288860856000. Its totient is φ = 19132681595328.

The previous prime is 20210011001993. The next prime is 20210011002011. The reversal of 20210011002001 is 10020011001202.

It is a cyclic number.

It is not a de Polignac number, because 20210011002001 - 2³ = 20210011001993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210011002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197797275 + ... + 197899423.

It is an arithmetic number, because the mean of its divisors is an integer number (1330553803500).

Almost surely, 2^{20210011002001} is an apocalyptic number.

It is an amenable number.

20210011002001 is a deficient number, since it is larger than the sum of its proper divisors (1078849853999).

20210011002001 is a wasteful number, since it uses less digits than its factorization.

20210011002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109488.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20210011002001 its reverse (10020011001202), we get a palindrome (30230022003203).

The spelling of 20210011002001 in words is "twenty trillion, two hundred ten billion, eleven million, two thousand, one".