1121240313212 has 24 divisors (see below), whose sum is σ = 1975465158912. Its totient is φ = 556830689600.

The previous prime is 1121240313103. The next prime is 1121240313217. The reversal of 1121240313212 is 2123130421211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121240313217) 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 7 ways as a sum of consecutive naturals, for example, 624839 + ... + 1622622.

It is an arithmetic number, because the mean of its divisors is an integer number (82311048288).

Almost surely, 2^{1121240313212} is an apocalyptic number.

It is an amenable number.

1121240313212 is a deficient number, since it is larger than the sum of its proper divisors (854224845700).

1121240313212 is a wasteful number, since it uses less digits than its factorization.

1121240313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248309 (or 2248307 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1121240313212 its reverse (2123130421211), we get a palindrome (3244370734423).

The spelling of 1121240313212 in words is "one trillion, one hundred twenty-one billion, two hundred forty million, three hundred thirteen thousand, two hundred twelve".