241221511231427 has 2 divisors, whose sum is σ = 241221511231428. Its totient is φ = 241221511231426.

The previous prime is 241221511231397. The next prime is 241221511231517. The reversal of 241221511231427 is 724132115122142.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 241221511231427 - 2²² = 241221507037123 is a prime.

It is not a weakly prime, because it can be changed into another prime (241221511231627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120610755615713 + 120610755615714.

It is an arithmetic number, because the mean of its divisors is an integer number (120610755615714).

Almost surely, 2^{241221511231427} is an apocalyptic number.

241221511231427 is a deficient number, since it is larger than the sum of its proper divisors (1).

241221511231427 is an equidigital number, since it uses as much as digits as its factorization.

241221511231427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

Adding to 241221511231427 its reverse (724132115122142), we get a palindrome (965353626353569).

The spelling of 241221511231427 in words is "two hundred forty-one trillion, two hundred twenty-one billion, five hundred eleven million, two hundred thirty-one thousand, four hundred twenty-seven".