202120200001 has 32 divisors (see below), whose sum is σ = 214064870400. Its totient is φ = 190564799040.

The previous prime is 202120199977. The next prime is 202120200047. The reversal of 202120200001 is 100002021202.

It is a cyclic number.

It is not a de Polignac number, because 202120200001 - 2⁵ = 202120199969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120200071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196042356 + ... + 196043386.

It is an arithmetic number, because the mean of its divisors is an integer number (6689527200).

Almost surely, 2^202120200001 is an apocalyptic number.

It is an amenable number.

202120200001 is a deficient number, since it is larger than the sum of its proper divisors (11944670399).

202120200001 is a wasteful number, since it uses less digits than its factorization.

202120200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 202120200001 its reverse (100002021202), we get a palindrome (302122221203).

The spelling of 202120200001 in words is "two hundred two billion, one hundred twenty million, two hundred thousand, one".