1150221396121 has 16 divisors (see below), whose sum is σ = 1336529420928. Its totient is φ = 969421708800.

The previous prime is 1150221396059. The next prime is 1150221396151. The reversal of 1150221396121 is 1216931220511.

It is a cyclic number.

It is not a de Polignac number, because 1150221396121 - 2¹⁵ = 1150221363353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150221396151) 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 15 ways as a sum of consecutive naturals, for example, 855606 + ... + 1741408.

It is an arithmetic number, because the mean of its divisors is an integer number (83533088808).

Almost surely, 2^{1150221396121} is an apocalyptic number.

It is an amenable number.

1150221396121 is a deficient number, since it is larger than the sum of its proper divisors (186308024807).

1150221396121 is an equidigital number, since it uses as much as digits as its factorization.

1150221396121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888912.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 1150221396121 in words is "one trillion, one hundred fifty billion, two hundred twenty-one million, three hundred ninety-six thousand, one hundred twenty-one".