1121000021012 has 12 divisors (see below), whose sum is σ = 1962121687680. Its totient is φ = 560393824536.

The previous prime is 1121000020997. The next prime is 1121000021047. The reversal of 1121000021012 is 2101200001211.

It is a junction number, because it is equal to n+sod(n) for n = 1121000020984 and 1121000021002.

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, 26522738 + ... + 26564969.

It is an arithmetic number, because the mean of its divisors is an integer number (163510140640).

Almost surely, 2^{1121000021012} is an apocalyptic number.

It is an amenable number.

1121000021012 is a deficient number, since it is larger than the sum of its proper divisors (841121666668).

1121000021012 is a wasteful number, since it uses less digits than its factorization.

1121000021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53092990 (or 53092988 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1121000021012 its reverse (2101200001211), we get a palindrome (3222200022223).

The spelling of 1121000021012 in words is "one trillion, one hundred twenty-one billion, twenty-one thousand, twelve".