4002122002 has 8 divisors (see below), whose sum is σ = 6007559436. Its totient is φ = 1999602192.

The previous prime is 4002121999. The next prime is 4002122023. The reversal of 4002122002 is 2002212004.

It can be written as a sum of positive squares in 2 ways, for example, as 3816644841 + 185477161 = 61779^2 + 13619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725973 + ... + 731464.

Almost surely, 2^4002122002 is an apocalyptic number.

4002122002 is a deficient number, since it is larger than the sum of its proper divisors (2005437434).

4002122002 is a wasteful number, since it uses less digits than its factorization.

4002122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458812.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4002122002 is about 63262.3268778505. The cubic root of 4002122002 is about 1587.6817080286.

Adding to 4002122002 its reverse (2002212004), we get a palindrome (6004334006).

The spelling of 4002122002 in words is "four billion, two million, one hundred twenty-two thousand, two".