1330821012 has 12 divisors (see below), whose sum is σ = 3105249056. Its totient is φ = 443607000.

The previous prime is 1330820987. The next prime is 1330821029. The reversal of 1330821012 is 2101280331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1330821012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55450864 + ... + 55450887.

Almost surely, 2^1330821012 is an apocalyptic number.

1330821012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1330821012 is an abundant number, since it is smaller than the sum of its proper divisors (1774428044).

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

1330821012 is a wasteful number, since it uses less digits than its factorization.

1330821012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110901758 (or 110901756 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1330821012 is about 36480.4195699556. The cubic root of 1330821012 is about 1099.9506898006.

The spelling of 1330821012 in words is "one billion, three hundred thirty million, eight hundred twenty-one thousand, twelve".