20112020201 has 32 divisors (see below), whose sum is σ = 26216279040. Its totient is φ = 14982594624.

The previous prime is 20112020197. The next prime is 20112020263. The reversal of 20112020201 is 10202021102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20112020201 - 2² = 20112020197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112020281) 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 31 ways as a sum of consecutive naturals, for example, 246146 + ... + 317508.

It is an arithmetic number, because the mean of its divisors is an integer number (819258720).

Almost surely, 2^20112020201 is an apocalyptic number.

It is an amenable number.

20112020201 is a deficient number, since it is larger than the sum of its proper divisors (6104258839).

20112020201 is a wasteful number, since it uses less digits than its factorization.

20112020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71565.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20112020201 its reverse (10202021102), we get a palindrome (30314041303).

Subtracting from 20112020201 its reverse (10202021102), we obtain a palindrome (9909999099).

The spelling of 20112020201 in words is "twenty billion, one hundred twelve million, twenty thousand, two hundred one".