4004153221 has 12 divisors (see below), whose sum is σ = 4174584544. Its totient is φ = 3840354000.

The previous prime is 4004153213. The next prime is 4004153261. The reversal of 4004153221 is 1223514004.

It is not a de Polignac number, because 4004153221 - 2³ = 4004153213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4004153192 and 4004153201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004153201) 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 in 11 ways as a sum of consecutive naturals, for example, 111226 + ... + 142756.

Almost surely, 2^4004153221 is an apocalyptic number.

It is an amenable number.

4004153221 is a deficient number, since it is larger than the sum of its proper divisors (170431323).

4004153221 is a wasteful number, since it uses less digits than its factorization.

4004153221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31740 (or 31711 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4004153221 is about 63278.3787798012. The cubic root of 4004153221 is about 1587.9502642108.

Adding to 4004153221 its reverse (1223514004), we get a palindrome (5227667225).

The spelling of 4004153221 in words is "four billion, four million, one hundred fifty-three thousand, two hundred twenty-one".