201420032221 has 12 divisors (see below), whose sum is σ = 202394845632. Its totient is φ = 200448930528.

The previous prime is 201420032207. The next prime is 201420032227. The reversal of 201420032221 is 122230024102.

It is a de Polignac number, because none of the positive numbers 2^k-201420032221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201420032227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96696046 + ... + 96698128.

It is an arithmetic number, because the mean of its divisors is an integer number (16866237136).

Almost surely, 2^201420032221 is an apocalyptic number.

It is an amenable number.

201420032221 is a deficient number, since it is larger than the sum of its proper divisors (974813411).

201420032221 is an frugal number, since it uses more digits than its factorization.

201420032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460 (or 3003 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 201420032221 its reverse (122230024102), we get a palindrome (323650056323).

The spelling of 201420032221 in words is "two hundred one billion, four hundred twenty million, thirty-two thousand, two hundred twenty-one".