1204330221 has 16 divisors (see below), whose sum is σ = 1784891200. Its totient is φ = 802572624.

The previous prime is 1204330217. The next prime is 1204330277. The reversal of 1204330221 is 1220334021.

1204330221 is a `hidden beast` number, since 12 + 0 + 433 + 0 + 221 = 666.

It is not a de Polignac number, because 1204330221 - 2² = 1204330217 is a prime.

It is a super-2 number, since 2×1204330221² = 2900822562427817682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204330194 and 1204330203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204330121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76770 + ... + 91116.

It is an arithmetic number, because the mean of its divisors is an integer number (111555700).

Almost surely, 2^1204330221 is an apocalyptic number.

It is an amenable number.

1204330221 is a deficient number, since it is larger than the sum of its proper divisors (580560979).

1204330221 is a wasteful number, since it uses less digits than its factorization.

1204330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17465 (or 17459 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1204330221 is about 34703.4612250709. The cubic root of 1204330221 is about 1063.9352421274.

Adding to 1204330221 its reverse (1220334021), we get a palindrome (2424664242).

The spelling of 1204330221 in words is "one billion, two hundred four million, three hundred thirty thousand, two hundred twenty-one".