202020012211 has 4 divisors (see below), whose sum is σ = 206947329624. Its totient is φ = 197092694800.

The previous prime is 202020012203. The next prime is 202020012223. The reversal of 202020012211 is 112210020202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 202020012211 - 2³ = 202020012203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202020012191 and 202020012200.

It is not an unprimeable number, because it can be changed into a prime (202020012511) 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, 2463658645 + ... + 2463658726.

It is an arithmetic number, because the mean of its divisors is an integer number (51736832406).

Almost surely, 2^202020012211 is an apocalyptic number.

202020012211 is a deficient number, since it is larger than the sum of its proper divisors (4927317413).

202020012211 is an equidigital number, since it uses as much as digits as its factorization.

202020012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927317412.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202020012211 its reverse (112210020202), we get a palindrome (314230032413).

The spelling of 202020012211 in words is "two hundred two billion, twenty million, twelve thousand, two hundred eleven".