2121332002 has 4 divisors (see below), whose sum is σ = 3181998006. Its totient is φ = 1060666000.

The previous prime is 2121331997. The next prime is 2121332009. The reversal of 2121332002 is 2002331212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1241082441 + 880249561 = 35229^2 + 29669^2 .

It is not an unprimeable number, because it can be changed into a prime (2121332009) by changing a digit.

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 as a sum of consecutive naturals, namely, 530332999 + ... + 530333002.

Almost surely, 2^2121332002 is an apocalyptic number.

2121332002 is a deficient number, since it is larger than the sum of its proper divisors (1060666004).

2121332002 is a wasteful number, since it uses less digits than its factorization.

2121332002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060666003.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2121332002 is about 46057.9200789614. The cubic root of 2121332002 is about 1284.9006472868.

Adding to 2121332002 its reverse (2002331212), we get a palindrome (4123663214).

The spelling of 2121332002 in words is "two billion, one hundred twenty-one million, three hundred thirty-two thousand, two".