240200221 has 4 divisors (see below), whose sum is σ = 245310912. Its totient is φ = 235089532.

The previous prime is 240200197. The next prime is 240200237. The reversal of 240200221 is 122002042.

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 240200221 - 2²⁷ = 105982493 is a prime.

It is a super-2 number, since 2×240200221² = 115392292336897682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240200251) 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 3 ways as a sum of consecutive naturals, for example, 2555275 + ... + 2555368.

It is an arithmetic number, because the mean of its divisors is an integer number (61327728).

Almost surely, 2^240200221 is an apocalyptic number.

It is an amenable number.

240200221 is a deficient number, since it is larger than the sum of its proper divisors (5110691).

240200221 is an equidigital number, since it uses as much as digits as its factorization.

240200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110690.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 240200221 is about 15498.3941426201. The cubic root of 240200221 is about 621.6192679335.

Adding to 240200221 its reverse (122002042), we get a palindrome (362202263).

The spelling of 240200221 in words is "two hundred forty million, two hundred thousand, two hundred twenty-one".