102020202001 has 4 divisors (see below), whose sum is σ = 108021390372. Its totient is φ = 96019013632.

The previous prime is 102020201999. The next prime is 102020202007. The reversal of 102020202001 is 100202020201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56256724225 + 45763477776 = 237185^2 + 213924^2 .

It is a cyclic number.

It is not a de Polignac number, because 102020202001 - 2¹ = 102020201999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020202007) 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 3 ways as a sum of consecutive naturals, for example, 3000594160 + ... + 3000594193.

It is an arithmetic number, because the mean of its divisors is an integer number (27005347593).

Almost surely, 2^102020202001 is an apocalyptic number.

It is an amenable number.

102020202001 is a deficient number, since it is larger than the sum of its proper divisors (6001188371).

102020202001 is an equidigital number, since it uses as much as digits as its factorization.

102020202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001188370.

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

Adding to 102020202001 its reverse (100202020201), we get a palindrome (202222222202).

It can be divided in two parts, 10202020200 and 1, that added together give a palindrome (10202020201).

The spelling of 102020202001 in words is "one hundred two billion, twenty million, two hundred two thousand, one".