221221231000241 has 8 divisors (see below), whose sum is σ = 225434878577664. Its totient is φ = 217026521165520.

The previous prime is 221221231000193. The next prime is 221221231000247. The reversal of 221221231000241 is 142000132122122.

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

It is a cyclic number.

It is not a de Polignac number, because 221221231000241 - 2³⁴ = 221204051131057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221221231000247) 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, 4734412091 + ... + 4734458816.

It is an arithmetic number, because the mean of its divisors is an integer number (28179359822208).

Almost surely, 2^{221221231000241} is an apocalyptic number.

It is an amenable number.

221221231000241 is a deficient number, since it is larger than the sum of its proper divisors (4213647577423).

221221231000241 is an equidigital number, since it uses as much as digits as its factorization.

221221231000241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9468871351.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221221231000241 its reverse (142000132122122), we get a palindrome (363221363122363).

The spelling of 221221231000241 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, two hundred thirty-one million, two hundred forty-one", and thus it is an aban number.