1165331223112 has 64 divisors (see below), whose sum is σ = 2509506921600. Its totient is φ = 496954967040.

The previous prime is 1165331223107. The next prime is 1165331223179. The reversal of 1165331223112 is 2113221335611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83993008 + ... + 84006880.

It is an arithmetic number, because the mean of its divisors is an integer number (39211045650).

Almost surely, 2^{1165331223112} is an apocalyptic number.

It is an amenable number.

1165331223112 is an abundant number, since it is smaller than the sum of its proper divisors (1344175698488).

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

1165331223112 is a wasteful number, since it uses less digits than its factorization.

1165331223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21206 (or 21202 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

Adding to 1165331223112 its reverse (2113221335611), we get a palindrome (3278552558723).

The spelling of 1165331223112 in words is "one trillion, one hundred sixty-five billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred twelve".