240109221 has 16 divisors (see below), whose sum is σ = 351014400. Its totient is φ = 144785520.

The previous prime is 240109201. The next prime is 240109223. The reversal of 240109221 is 122901042.

It is not a de Polignac number, because 240109221 - 2⁶ = 240109157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240109223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11715 + ... + 24848.

It is an arithmetic number, because the mean of its divisors is an integer number (21938400).

Almost surely, 2^240109221 is an apocalyptic number.

It is an amenable number.

240109221 is a deficient number, since it is larger than the sum of its proper divisors (110905179).

240109221 is a wasteful number, since it uses less digits than its factorization.

240109221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36776.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 240109221 is about 15495.4580764816. The cubic root of 240109221 is about 621.5407577388.

The spelling of 240109221 in words is "two hundred forty million, one hundred nine thousand, two hundred twenty-one".