1121021012 has 12 divisors (see below), whose sum is σ = 2047082016. Its totient is φ = 536140440.

The previous prime is 1121020993. The next prime is 1121021093. The reversal of 1121021012 is 2101201211.

It is a junction number, because it is equal to n+sod(n) for n = 1121020984 and 1121021002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6092414 + ... + 6092597.

It is an arithmetic number, because the mean of its divisors is an integer number (170590168).

Almost surely, 2^1121021012 is an apocalyptic number.

It is an amenable number.

1121021012 is a deficient number, since it is larger than the sum of its proper divisors (926061004).

1121021012 is a wasteful number, since it uses less digits than its factorization.

1121021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12185038 (or 12185036 counting only the distinct ones).

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

The square root of 1121021012 is about 33481.6518708382. The cubic root of 1121021012 is about 1038.8142958817.

Adding to 1121021012 its reverse (2101201211), we get a palindrome (3222222223).

The spelling of 1121021012 in words is "one billion, one hundred twenty-one million, twenty-one thousand, twelve".