1121001309912 has 32 divisors (see below), whose sum is σ = 3057276300480. Its totient is φ = 339697366560.

The previous prime is 1121001309851. The next prime is 1121001309913. The reversal of 1121001309912 is 2199031001211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121001309912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001309913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2123108278 + ... + 2123108805.

It is an arithmetic number, because the mean of its divisors is an integer number (95539884390).

Almost surely, 2^{1121001309912} is an apocalyptic number.

1121001309912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121001309912 is an abundant number, since it is smaller than the sum of its proper divisors (1936274990568).

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

1121001309912 is a wasteful number, since it uses less digits than its factorization.

1121001309912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246217103 (or 4246217099 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 30.

The spelling of 1121001309912 in words is "one trillion, one hundred twenty-one billion, one million, three hundred nine thousand, nine hundred twelve".