241221320353445 has 4 divisors (see below), whose sum is σ = 289465584424140. Its totient is φ = 192977056282752.

The previous prime is 241221320353427. The next prime is 241221320353549. The reversal of 241221320353445 is 544353023122142.

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 58115876884129 + 183105443469316 = 7623377^2 + 13531646^2 .

It is a cyclic number.

It is not a de Polignac number, because 241221320353445 - 2¹⁰ = 241221320352421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24122132035340 + ... + 24122132035349.

It is an arithmetic number, because the mean of its divisors is an integer number (72366396106035).

Almost surely, 2^{241221320353445} is an apocalyptic number.

It is an amenable number.

241221320353445 is a deficient number, since it is larger than the sum of its proper divisors (48244264070695).

241221320353445 is an equidigital number, since it uses as much as digits as its factorization.

241221320353445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48244264070694.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 241221320353445 its reverse (544353023122142), we get a palindrome (785574343475587).

The spelling of 241221320353445 in words is "two hundred forty-one trillion, two hundred twenty-one billion, three hundred twenty million, three hundred fifty-three thousand, four hundred forty-five".