20201202001 has 8 divisors (see below), whose sum is σ = 20409834024. Its totient is φ = 19992739200.

The previous prime is 20201201981. The next prime is 20201202011. The reversal of 20201202001 is 10020210202.

It can be written as a sum of positive squares in 4 ways, for example, as 6272481601 + 13928720400 = 79199^2 + 118020^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20201202001 - 2²⁵ = 20167647569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201202011) 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, 205101 + ... + 287173.

It is an arithmetic number, because the mean of its divisors is an integer number (2551229253).

Almost surely, 2^20201202001 is an apocalyptic number.

It is an amenable number.

20201202001 is a deficient number, since it is larger than the sum of its proper divisors (208632023).

20201202001 is a wasteful number, since it uses less digits than its factorization.

20201202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84611.

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

Adding to 20201202001 its reverse (10020210202), we get a palindrome (30221412203).

It can be divided in two parts, 2020 and 1202001, that added together give a palindrome (1204021).

The spelling of 20201202001 in words is "twenty billion, two hundred one million, two hundred two thousand, one".