1216525510241 has 8 divisors (see below), whose sum is σ = 1233369296544. Its totient is φ = 1199686563360.

The previous prime is 1216525510217. The next prime is 1216525510243. The reversal of 1216525510241 is 1420155256121.

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 1216525510241 - 2⁶ = 1216525510177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1216525510243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702155 + ... + 1710576.

It is an arithmetic number, because the mean of its divisors is an integer number (154171162068).

Almost surely, 2^{1216525510241} is an apocalyptic number.

It is an amenable number.

1216525510241 is a deficient number, since it is larger than the sum of its proper divisors (16843786303).

1216525510241 is an equidigital number, since it uses as much as digits as its factorization.

1216525510241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419711.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 1216525510241 in words is "one trillion, two hundred sixteen billion, five hundred twenty-five million, five hundred ten thousand, two hundred forty-one".