201221350 has 48 divisors (see below), whose sum is σ = 432333936. Its totient is φ = 68864000.

The previous prime is 201221347. The next prime is 201221351. The reversal of 201221350 is 53122102.

201221350 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1411 + ... + 20110.

It is an arithmetic number, because the mean of its divisors is an integer number (9006957).

Almost surely, 2^201221350 is an apocalyptic number.

201221350 is an abundant number, since it is smaller than the sum of its proper divisors (231112586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201221350 is a wasteful number, since it uses less digits than its factorization.

201221350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21561 (or 21556 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 201221350 is about 14185.2511433531. The cubic root of 201221350 is about 585.9915489934.

Adding to 201221350 its reverse (53122102), we get a palindrome (254343452).

The spelling of 201221350 in words is "two hundred one million, two hundred twenty-one thousand, three hundred fifty".