1002020201 has 8 divisors (see below), whose sum is σ = 1233255744. Its totient is φ = 792807120.

The previous prime is 1002020191. The next prime is 1002020249. The reversal of 1002020201 is 1020202001.

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

It is not a de Polignac number, because 1002020201 - 2¹⁰ = 1002019177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002020251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5505515 + ... + 5505696.

It is an arithmetic number, because the mean of its divisors is an integer number (154156968).

Almost surely, 2^1002020201 is an apocalyptic number.

It is an amenable number.

1002020201 is a deficient number, since it is larger than the sum of its proper divisors (231235543).

1002020201 is a wasteful number, since it uses less digits than its factorization.

1002020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011231.

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

The square root of 1002020201 is about 31654.7026680081. The cubic root of 1002020201 is about 1000.6729473736.

Adding to 1002020201 its reverse (1020202001), we get a palindrome (2022222202).

The spelling of 1002020201 in words is "one billion, two million, twenty thousand, two hundred one".