1121221210112 has 26 divisors (see below), whose sum is σ = 2242168692768. Its totient is φ = 560610603008.

The previous prime is 1121221210051. The next prime is 1121221210133. The reversal of 1121221210112 is 2110121221211.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 136863728 + ... + 136871919.

Almost surely, 2^{1121221210112} is an apocalyptic number.

It is an amenable number.

1121221210112 is a deficient number, since it is larger than the sum of its proper divisors (1120947482656).

1121221210112 is an frugal number, since it uses more digits than its factorization.

1121221210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273735671 (or 273735649 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121221210112 its reverse (2110121221211), we get a palindrome (3231342431323).

The spelling of 1121221210112 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred ten thousand, one hundred twelve".