1121201221112 has 16 divisors (see below), whose sum is σ = 2402574045360. Its totient is φ = 480514809024.

The previous prime is 1121201221099. The next prime is 1121201221121. The reversal of 1121201221112 is 2111221021211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010725133 + ... + 10010725244.

It is an arithmetic number, because the mean of its divisors is an integer number (150160877835).

Almost surely, 2^{1121201221112} is an apocalyptic number.

It is an amenable number.

1121201221112 is an abundant number, since it is smaller than the sum of its proper divisors (1281372824248).

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

1121201221112 is a wasteful number, since it uses less digits than its factorization.

1121201221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20021450390 (or 20021450386 counting only the distinct ones).

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

Adding to 1121201221112 its reverse (2111221021211), we get a palindrome (3232422242323).

The spelling of 1121201221112 in words is "one trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-one thousand, one hundred twelve".