1181011210112 has 16 divisors (see below), whose sum is σ = 2352795770400. Its totient is φ = 590505604992.

The previous prime is 1181011210069. The next prime is 1181011210157. The reversal of 1181011210112 is 2110121101811.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×1181011210112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4613324912 + ... + 4613325167.

It is an arithmetic number, because the mean of its divisors is an integer number (147049735650).

Almost surely, 2^{1181011210112} is an apocalyptic number.

It is an amenable number.

1181011210112 is a deficient number, since it is larger than the sum of its proper divisors (1171784560288).

1181011210112 is an frugal number, since it uses more digits than its factorization.

1181011210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9226650093 (or 9226650081 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 20.

Adding to 1181011210112 its reverse (2110121101811), we get a palindrome (3291132311923).

The spelling of 1181011210112 in words is "one trillion, one hundred eighty-one billion, eleven million, two hundred ten thousand, one hundred twelve".