1121001109912 has 16 divisors (see below), whose sum is σ = 2109304212840. Its totient is φ = 558519986496.

The previous prime is 1121001109897. The next prime is 1121001109913. The reversal of 1121001109912 is 2199011001211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001109913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247568653 + ... + 247573180.

Almost surely, 2^{1121001109912} is an apocalyptic number.

It is an amenable number.

1121001109912 is a deficient number, since it is larger than the sum of its proper divisors (988303102928).

1121001109912 is a wasteful number, since it uses less digits than its factorization.

1121001109912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495142122 (or 495142118 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 1121001109912 in words is "one trillion, one hundred twenty-one billion, one million, one hundred nine thousand, nine hundred twelve".