20201012002101 has 96 divisors (see below), whose sum is σ = 32803824532480. Its totient is φ = 10829870843904.

The previous prime is 20201012002097. The next prime is 20201012002181. The reversal of 20201012002101 is 10120021010202.

It is not a de Polignac number, because 20201012002101 - 2² = 20201012002097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201012002181) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5170464390 + ... + 5170468296.

Almost surely, 2^{20201012002101} is an apocalyptic number.

20201012002101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20201012002101 is a deficient number, since it is larger than the sum of its proper divisors (12602812530379).

20201012002101 is a wasteful number, since it uses less digits than its factorization.

20201012002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443 (or 6426 counting only the distinct ones).

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

Adding to 20201012002101 its reverse (10120021010202), we get a palindrome (30321033012303).

The spelling of 20201012002101 in words is "twenty trillion, two hundred one billion, twelve million, two thousand, one hundred one".