1120021012 has 18 divisors (see below), whose sum is σ = 2154421514. Its totient is φ = 509100240.

The previous prime is 1120021009. The next prime is 1120021099. The reversal of 1120021012 is 2101200211.

It can be written as a sum of positive squares in only one way, i.e., 712142596 + 407878416 = 26686^2 + 20196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1120021012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1156563 + ... + 1157530.

Almost surely, 2^1120021012 is an apocalyptic number.

It is an amenable number.

1120021012 is a deficient number, since it is larger than the sum of its proper divisors (1034400502).

1120021012 is a wasteful number, since it uses less digits than its factorization.

1120021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314119 (or 2314106 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1120021012 is about 33466.7149866849. The cubic root of 1120021012 is about 1038.5053146562.

Adding to 1120021012 its reverse (2101200211), we get a palindrome (3221221223).

The spelling of 1120021012 in words is "one billion, one hundred twenty million, twenty-one thousand, twelve".