2133321012 has 18 divisors (see below), whose sum is σ = 5392561538. Its totient is φ = 711106992.

The previous prime is 2133320993. The next prime is 2133321013. The reversal of 2133321012 is 2101233312.

It can be written as a sum of positive squares in only one way, i.e., 1649496996 + 483824016 = 40614^2 + 21996^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133321013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29629423 + ... + 29629494.

Almost surely, 2^2133321012 is an apocalyptic number.

It is an amenable number.

2133321012 is an abundant number, since it is smaller than the sum of its proper divisors (3259240526).

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

2133321012 is a wasteful number, since it uses less digits than its factorization.

2133321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59258927 (or 59258922 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2133321012 is about 46187.8881526315. Note that the first 3 decimals coincide. The cubic root of 2133321012 is about 1287.3167011118.

Adding to 2133321012 its reverse (2101233312), we get a palindrome (4234554324).

The spelling of 2133321012 in words is "two billion, one hundred thirty-three million, three hundred twenty-one thousand, twelve".