1121210321312 has 48 divisors (see below), whose sum is σ = 2255435733600. Its totient is φ = 548491319040.

The previous prime is 1121210321303. The next prime is 1121210321351. The reversal of 1121210321312 is 2131230121211.

It is a super-2 number, since 2×1121210321312² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008887 + ... + 1805622.

It is an arithmetic number, because the mean of its divisors is an integer number (46988244450).

Almost surely, 2^{1121210321312} is an apocalyptic number.

It is an amenable number.

1121210321312 is an abundant number, since it is smaller than the sum of its proper divisors (1134225412288).

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

1121210321312 is a wasteful number, since it uses less digits than its factorization.

1121210321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814789 (or 2814781 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1121210321312 its reverse (2131230121211), we get a palindrome (3252440442523).

The spelling of 1121210321312 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, three hundred twenty-one thousand, three hundred twelve".