20022020201 has 4 divisors (see below), whose sum is σ = 20116911504. Its totient is φ = 19927128900.

The previous prime is 20022020173. The next prime is 20022020209. The reversal of 20022020201 is 10202022002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022020201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20022020209) 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, 47445335 + ... + 47445756.

It is an arithmetic number, because the mean of its divisors is an integer number (5029227876).

Almost surely, 2^20022020201 is an apocalyptic number.

It is an amenable number.

20022020201 is a deficient number, since it is larger than the sum of its proper divisors (94891303).

20022020201 is an equidigital number, since it uses as much as digits as its factorization.

20022020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94891302.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20022020201 its reverse (10202022002), we get a palindrome (30224042203).

The spelling of 20022020201 in words is "twenty billion, twenty-two million, twenty thousand, two hundred one".