241555221 has 12 divisors (see below), whose sum is σ = 349086348. Its totient is φ = 160956864.

The previous prime is 241555213. The next prime is 241555247. The reversal of 241555221 is 122555142.

It can be written as a sum of positive squares in 2 ways, for example, as 155900196 + 85655025 = 12486^2 + 9255^2 .

It is not a de Polignac number, because 241555221 - 2³ = 241555213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241555211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16831 + ... + 27683.

It is an arithmetic number, because the mean of its divisors is an integer number (29090529).

Almost surely, 2^241555221 is an apocalyptic number.

It is an amenable number.

241555221 is a deficient number, since it is larger than the sum of its proper divisors (107531127).

241555221 is a wasteful number, since it uses less digits than its factorization.

241555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13332 (or 13329 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 241555221 is about 15542.0468729186. The cubic root of 241555221 is about 622.7859546532.

The spelling of 241555221 in words is "two hundred forty-one million, five hundred fifty-five thousand, two hundred twenty-one".