4002221004 has 24 divisors (see below), whose sum is σ = 9406683888. Its totient is φ = 1324335360.

The previous prime is 4002220991. The next prime is 4002221021. The reversal of 4002221004 is 4001222004.

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 7 ways as a sum of consecutive naturals, for example, 1215577 + ... + 1218864.

It is an arithmetic number, because the mean of its divisors is an integer number (391945162).

Almost surely, 2^4002221004 is an apocalyptic number.

It is an amenable number.

4002221004 is an abundant number, since it is smaller than the sum of its proper divisors (5404462884).

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

4002221004 is a wasteful number, since it uses less digits than its factorization.

4002221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434585 (or 2434583 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4002221004 is about 63263.1093450203. The cubic root of 4002221004 is about 1587.6947996142.

Adding to 4002221004 its reverse (4001222004), we get a palindrome (8003443008).

The spelling of 4002221004 in words is "four billion, two million, two hundred twenty-one thousand, four".