201223420211 has 16 divisors (see below), whose sum is σ = 229479568128. Its totient is φ = 174656882400.

The previous prime is 201223420199. The next prime is 201223420219. The reversal of 201223420211 is 112024322102.

It is a de Polignac number, because none of the positive numbers 2^k-201223420211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201223420219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588620 + ... + 865401.

It is an arithmetic number, because the mean of its divisors is an integer number (14342473008).

Almost surely, 2^201223420211 is an apocalyptic number.

201223420211 is a deficient number, since it is larger than the sum of its proper divisors (28256147917).

201223420211 is a wasteful number, since it uses less digits than its factorization.

201223420211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454602.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201223420211 its reverse (112024322102), we get a palindrome (313247742313).

The spelling of 201223420211 in words is "two hundred one billion, two hundred twenty-three million, four hundred twenty thousand, two hundred eleven".