2004220221 has 8 divisors (see below), whose sum is σ = 2692693344. Its totient is φ = 1325946960.

The previous prime is 2004220213. The next prime is 2004220223. The reversal of 2004220221 is 1220224002.

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

It is not a de Polignac number, because 2004220221 - 2³ = 2004220213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2004220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004220223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2549506 + ... + 2550291.

It is an arithmetic number, because the mean of its divisors is an integer number (336586668).

Almost surely, 2^2004220221 is an apocalyptic number.

It is an amenable number.

2004220221 is a deficient number, since it is larger than the sum of its proper divisors (688473123).

2004220221 is a wasteful number, since it uses less digits than its factorization.

2004220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099931.

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

The square root of 2004220221 is about 44768.5181908001. The cubic root of 2004220221 is about 1260.8066181832.

Adding to 2004220221 its reverse (1220224002), we get a palindrome (3224444223).

The spelling of 2004220221 in words is "two billion, four million, two hundred twenty thousand, two hundred twenty-one".