201221230 has 16 divisors (see below), whose sum is σ = 413940960. Its totient is φ = 68990112.

The previous prime is 201221219. The next prime is 201221243. The reversal of 201221230 is 32122102.

201221230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201221230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437225 + ... + 1437364.

It is an arithmetic number, because the mean of its divisors is an integer number (25871310).

Almost surely, 2^201221230 is an apocalyptic number.

201221230 is an abundant number, since it is smaller than the sum of its proper divisors (212719730).

201221230 is a wasteful number, since it uses less digits than its factorization.

201221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874603.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 201221230 is about 14185.2469136071. The cubic root of 201221230 is about 585.9914325065.

Adding to 201221230 its reverse (32122102), we get a palindrome (233343332).

The spelling of 201221230 in words is "two hundred one million, two hundred twenty-one thousand, two hundred thirty".