1150221050561 has 8 divisors (see below), whose sum is σ = 1255627065024. Its totient is φ = 1044955113520.

The previous prime is 1150221050557. The next prime is 1150221050599. The reversal of 1150221050561 is 1650501220511.

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 1150221050561 - 2² = 1150221050557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150221050501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35002181 + ... + 35035026.

It is an arithmetic number, because the mean of its divisors is an integer number (156953383128).

Almost surely, 2^{1150221050561} is an apocalyptic number.

1150221050561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1150221050561 is a deficient number, since it is larger than the sum of its proper divisors (105406014463).

1150221050561 is a wasteful number, since it uses less digits than its factorization.

1150221050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70038711.

The product of its (nonzero) digits is 3000, while the sum is 29.

The spelling of 1150221050561 in words is "one trillion, one hundred fifty billion, two hundred twenty-one million, fifty thousand, five hundred sixty-one".