1150221554111 has 16 divisors (see below), whose sum is σ = 1340810039808. Its totient is φ = 966315074400.

The previous prime is 1150221554077. The next prime is 1150221554171. The reversal of 1150221554111 is 1114551220511.

It is a cyclic number.

It is not a de Polignac number, because 1150221554111 - 2³⁰ = 1149147812287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150221554171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4638395 + ... + 4880076.

It is an arithmetic number, because the mean of its divisors is an integer number (83800627488).

Almost surely, 2^{1150221554111} is an apocalyptic number.

1150221554111 is a deficient number, since it is larger than the sum of its proper divisors (190588485697).

1150221554111 is an equidigital number, since it uses as much as digits as its factorization.

1150221554111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518822.

The product of its (nonzero) digits is 2000, while the sum is 29.

Adding to 1150221554111 its reverse (1114551220511), we get a palindrome (2264772774622).

The spelling of 1150221554111 in words is "one trillion, one hundred fifty billion, two hundred twenty-one million, five hundred fifty-four thousand, one hundred eleven".