20021010201 has 24 divisors (see below), whose sum is σ = 30611412000. Its totient is φ = 12574187712.

The previous prime is 20021010197. The next prime is 20021010203. The reversal of 20021010201 is 10201012002.

It is not a de Polignac number, because 20021010201 - 2² = 20021010197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20021010203) 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 23 ways as a sum of consecutive naturals, for example, 296436 + ... + 357653.

It is an arithmetic number, because the mean of its divisors is an integer number (1275475500).

Almost surely, 2^20021010201 is an apocalyptic number.

It is an amenable number.

20021010201 is a deficient number, since it is larger than the sum of its proper divisors (10590401799).

20021010201 is a wasteful number, since it uses less digits than its factorization.

20021010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654293 (or 654290 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20021010201 its reverse (10201012002), we get a palindrome (30222022203).

The spelling of 20021010201 in words is "twenty billion, twenty-one million, ten thousand, two hundred one".