241643267762221 has 4 divisors (see below), whose sum is σ = 260231211436252. Its totient is φ = 223055324088192.

The previous prime is 241643267762189. The next prime is 241643267762287. The reversal of 241643267762221 is 122267762346142.

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 12563267580900 + 229080000181321 = 3544470^2 + 15135389^2 .

It is a cyclic number.

It is not a de Polignac number, because 241643267762221 - 2⁵ = 241643267762189 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 (241643267763221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9293971836996 + ... + 9293971837021.

It is an arithmetic number, because the mean of its divisors is an integer number (65057802859063).

Almost surely, 2^{241643267762221} is an apocalyptic number.

It is an amenable number.

241643267762221 is a deficient number, since it is larger than the sum of its proper divisors (18587943674031).

241643267762221 is a wasteful number, since it uses less digits than its factorization.

241643267762221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18587943674030.

The product of its digits is 16257024, while the sum is 55.

The spelling of 241643267762221 in words is "two hundred forty-one trillion, six hundred forty-three billion, two hundred sixty-seven million, seven hundred sixty-two thousand, two hundred twenty-one".