241221320525240 has 192 divisors, whose sum is σ = 601022725954560. Its totient is φ = 87064623360000.

The previous prime is 241221320525113. The next prime is 241221320525261. The reversal of 241221320525240 is 42525023122142.

It is a self number, because there is not a number n which added to its sum of digits gives 241221320525240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 456152585 + ... + 456681095.

It is an arithmetic number, because the mean of its divisors is an integer number (3130326697680).

Almost surely, 2^{241221320525240} is an apocalyptic number.

241221320525240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 241221320525240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300511362977280).

241221320525240 is an abundant number, since it is smaller than the sum of its proper divisors (359801405429320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

241221320525240 is a wasteful number, since it uses less digits than its factorization.

241221320525240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529246 (or 529231 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 241221320525240 its reverse (42525023122142), we get a palindrome (283746343647382).

The spelling of 241221320525240 in words is "two hundred forty-one trillion, two hundred twenty-one billion, three hundred twenty million, five hundred twenty-five thousand, two hundred forty".