241221502455541 has 8 divisors (see below), whose sum is σ = 247006486805760. Its totient is φ = 235444480922112.

The previous prime is 241221502455503. The next prime is 241221502455587. The reversal of 241221502455541 is 145554205122142.

It is a happy number.

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 241221502455541 - 2¹³ = 241221502447349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241221502255541) 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, 1990642885 + ... + 1990764058.

It is an arithmetic number, because the mean of its divisors is an integer number (30875810850720).

Almost surely, 2^{241221502455541} is an apocalyptic number.

It is an amenable number.

241221502455541 is a deficient number, since it is larger than the sum of its proper divisors (5784984350219).

241221502455541 is a wasteful number, since it uses less digits than its factorization.

241221502455541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981408395.

The product of its (nonzero) digits is 640000, while the sum is 43.

Adding to 241221502455541 its reverse (145554205122142), we get a palindrome (386775707577683).

The spelling of 241221502455541 in words is "two hundred forty-one trillion, two hundred twenty-one billion, five hundred two million, four hundred fifty-five thousand, five hundred forty-one".