1121001001012 has 24 divisors (see below), whose sum is σ = 1986348091392. Its totient is φ = 553501956000.

The previous prime is 1121001001007. The next prime is 1121001001013. The reversal of 1121001001012 is 2101001001211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121001001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001001013) 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, 3467664 + ... + 3777127.

It is an arithmetic number, because the mean of its divisors is an integer number (82764503808).

Almost surely, 2^{1121001001012} is an apocalyptic number.

It is an amenable number.

1121001001012 is a deficient number, since it is larger than the sum of its proper divisors (865347090380).

1121001001012 is a wasteful number, since it uses less digits than its factorization.

1121001001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245279 (or 7245277 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1121001001012 its reverse (2101001001211), we get a palindrome (3222002002223).

The spelling of 1121001001012 in words is "one trillion, one hundred twenty-one billion, one million, one thousand, twelve".