240141221 has 4 divisors (see below), whose sum is σ = 247887744. Its totient is φ = 232394700.

The previous prime is 240141173. The next prime is 240141259. The reversal of 240141221 is 122141042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240141221 - 2¹⁸ = 239879077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240141221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240141521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873215 + ... + 3873276.

It is an arithmetic number, because the mean of its divisors is an integer number (61971936).

Almost surely, 2^240141221 is an apocalyptic number.

It is an amenable number.

240141221 is a deficient number, since it is larger than the sum of its proper divisors (7746523).

240141221 is an equidigital number, since it uses as much as digits as its factorization.

240141221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746522.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 240141221 is about 15496.4906027139. The cubic root of 240141221 is about 621.5683679803.

Adding to 240141221 its reverse (122141042), we get a palindrome (362282263).

The spelling of 240141221 in words is "two hundred forty million, one hundred forty-one thousand, two hundred twenty-one".