242263221 has 8 divisors (see below), whose sum is σ = 323215200. Its totient is φ = 161410032.

The previous prime is 242263211. The next prime is 242263249. The reversal of 242263221 is 122362242.

It is a happy number.

242263221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 242263221 - 2⁶ = 242263157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242263191 and 242263200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242263201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18771 + ... + 28928.

It is an arithmetic number, because the mean of its divisors is an integer number (40401900).

Almost surely, 2^242263221 is an apocalyptic number.

It is an amenable number.

242263221 is a deficient number, since it is larger than the sum of its proper divisors (80951979).

242263221 is a wasteful number, since it uses less digits than its factorization.

242263221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49395.

The product of its digits is 2304, while the sum is 24.

The square root of 242263221 is about 15564.8071301896. The cubic root of 242263221 is about 623.3938244427.

The spelling of 242263221 in words is "two hundred forty-two million, two hundred sixty-three thousand, two hundred twenty-one".