1121121042212 has 24 divisors (see below), whose sum is σ = 2012019905280. Its totient is φ = 546357191040.

The previous prime is 1121121042193. The next prime is 1121121042247. The reversal of 1121121042212 is 2122401211211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12326912 + ... + 12417527.

It is an arithmetic number, because the mean of its divisors is an integer number (83834162720).

Almost surely, 2^{1121121042212} is an apocalyptic number.

It is an amenable number.

1121121042212 is a deficient number, since it is larger than the sum of its proper divisors (890898863068).

1121121042212 is a wasteful number, since it uses less digits than its factorization.

1121121042212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24744731 (or 24744729 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1121121042212 its reverse (2122401211211), we get a palindrome (3243522253423).

The spelling of 1121121042212 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, forty-two thousand, two hundred twelve".