4002002012212 has 12 divisors (see below), whose sum is σ = 7005756197860. Its totient is φ = 2000357384256.

The previous prime is 4002002012117. The next prime is 4002002012213. The reversal of 4002002012212 is 2122102002004.

It can be written as a sum of positive squares in 2 ways, for example, as 2286646011556 + 1715356000656 = 1512166^2 + 1309716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002002012213) 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 3 ways as a sum of consecutive naturals, for example, 160891473 + ... + 160916344.

Almost surely, 2^{4002002012212} is an apocalyptic number.

It is an amenable number.

4002002012212 is a deficient number, since it is larger than the sum of its proper divisors (3003754185648).

4002002012212 is a wasteful number, since it uses less digits than its factorization.

4002002012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321810930 (or 321810928 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 4002002012212 its reverse (2122102002004), we get a palindrome (6124104014216).

The spelling of 4002002012212 in words is "four trillion, two billion, two million, twelve thousand, two hundred twelve".