238201221 has 8 divisors (see below), whose sum is σ = 318838464. Its totient is φ = 158182400.

The previous prime is 238201219. The next prime is 238201247. The reversal of 238201221 is 122102832.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238201221 - 2¹ = 238201219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153705 + ... + 155246.

It is an arithmetic number, because the mean of its divisors is an integer number (39854808).

Almost surely, 2^238201221 is an apocalyptic number.

It is an amenable number.

238201221 is a deficient number, since it is larger than the sum of its proper divisors (80637243).

238201221 is a wasteful number, since it uses less digits than its factorization.

238201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309211.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 238201221 is about 15433.7688527462. The cubic root of 238201221 is about 619.8900438027.

The spelling of 238201221 in words is "two hundred thirty-eight million, two hundred one thousand, two hundred twenty-one".