241221435214455 has 80 divisors (see below), whose sum is σ = 459725709136320. Its totient is φ = 120736044329472.

The previous prime is 241221435214433. The next prime is 241221435214471. The reversal of 241221435214455 is 554412534122142.

It is a happy number.

241221435214455 is a `hidden beast` number, since 2 + 4 + 1 + 2 + 2 + 143 + 52 + 1 + 4 + 455 = 666.

It is not a de Polignac number, because 241221435214455 - 2⁴⁴ = 223629249170039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 241221435214455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 243808390 + ... + 244795779.

It is an arithmetic number, because the mean of its divisors is an integer number (5746571364204).

Almost surely, 2^{241221435214455} is an apocalyptic number.

241221435214455 is a deficient number, since it is larger than the sum of its proper divisors (218504273921865).

241221435214455 is a wasteful number, since it uses less digits than its factorization.

241221435214455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488604262 (or 488604253 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 45.

Adding to 241221435214455 its reverse (554412534122142), we get a palindrome (795633969336597).

The spelling of 241221435214455 in words is "two hundred forty-one trillion, two hundred twenty-one billion, four hundred thirty-five million, two hundred fourteen thousand, four hundred fifty-five".