12231111201012 has 120 divisors (see below), whose sum is σ = 34907775819840. Its totient is φ = 3703585904640.

The previous prime is 12231111200977. The next prime is 12231111201047. The reversal of 12231111201012 is 21010211113221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12231111200977) and next prime (12231111201047).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3399988 + ... + 6001844.

It is an arithmetic number, because the mean of its divisors is an integer number (290898131832).

Almost surely, 2^{12231111201012} is an apocalyptic number.

12231111201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231111201012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17453887909920).

12231111201012 is an abundant number, since it is smaller than the sum of its proper divisors (22676664618828).

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

12231111201012 is a wasteful number, since it uses less digits than its factorization.

12231111201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603203 (or 2603192 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12231111201012 its reverse (21010211113221), we get a palindrome (33241322314233).

The spelling of 12231111201012 in words is "twelve trillion, two hundred thirty-one billion, one hundred eleven million, two hundred one thousand, twelve".