240221101 has 4 divisors (see below), whose sum is σ = 254351772. Its totient is φ = 226090432.

The previous prime is 240221083. The next prime is 240221129. The reversal of 240221101 is 101122042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 209960100 + 30261001 = 14490^2 + 5501^2 .

It is a cyclic number.

It is not a de Polignac number, because 240221101 - 2⁷ = 240220973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7065310 + ... + 7065343.

It is an arithmetic number, because the mean of its divisors is an integer number (63587943).

Almost surely, 2^240221101 is an apocalyptic number.

It is an amenable number.

240221101 is a deficient number, since it is larger than the sum of its proper divisors (14130671).

240221101 is a wasteful number, since it uses less digits than its factorization.

240221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14130670.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 240221101 is about 15499.0677461582. The cubic root of 240221101 is about 621.6372793439.

Adding to 240221101 its reverse (101122042), we get a palindrome (341343143).

The spelling of 240221101 in words is "two hundred forty million, two hundred twenty-one thousand, one hundred one".