1120021144 has 16 divisors (see below), whose sum is σ = 2290952520. Its totient is φ = 509100480.

The previous prime is 1120021099. The next prime is 1120021171. The reversal of 1120021144 is 4411200211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6363669 + ... + 6363844.

Almost surely, 2^1120021144 is an apocalyptic number.

It is an amenable number.

1120021144 is an abundant number, since it is smaller than the sum of its proper divisors (1170931376).

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

1120021144 is a wasteful number, since it uses less digits than its factorization.

1120021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12727530 (or 12727526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1120021144 is about 33466.7169587936. The cubic root of 1120021144 is about 1038.5053554538.

Adding to 1120021144 its reverse (4411200211), we get a palindrome (5531221355).

The spelling of 1120021144 in words is "one billion, one hundred twenty million, twenty-one thousand, one hundred forty-four".