1121302230012 has 72 divisors (see below), whose sum is σ = 2912140812672. Its totient is φ = 363524112000.

The previous prime is 1121302230011. The next prime is 1121302230043. The reversal of 1121302230012 is 2100322031211.

1121302230012 is a `hidden beast` number, since 1 + 121 + 302 + 230 + 0 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121302230011) 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 23 ways as a sum of consecutive naturals, for example, 3288762 + ... + 3613662.

It is an arithmetic number, because the mean of its divisors is an integer number (40446400176).

Almost surely, 2^{1121302230012} is an apocalyptic number.

1121302230012 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 1121302230012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456070406336).

1121302230012 is an abundant number, since it is smaller than the sum of its proper divisors (1790838582660).

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

1121302230012 is a wasteful number, since it uses less digits than its factorization.

1121302230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327539 (or 327534 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1121302230012 its reverse (2100322031211), we get a palindrome (3221624261223).

The spelling of 1121302230012 in words is "one trillion, one hundred twenty-one billion, three hundred two million, two hundred thirty thousand, twelve".