1330402221 has 12 divisors (see below), whose sum is σ = 1935519040. Its totient is φ = 880553160.

The previous prime is 1330402219. The next prime is 1330402247. The reversal of 1330402221 is 1222040331.

1330402221 is a `hidden beast` number, since 13 + 30 + 402 + 221 = 666.

It is not a de Polignac number, because 1330402221 - 2¹ = 1330402219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330402194 and 1330402203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330402291) 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, 530485 + ... + 532986.

Almost surely, 2^1330402221 is an apocalyptic number.

It is an amenable number.

1330402221 is a deficient number, since it is larger than the sum of its proper divisors (605116819).

1330402221 is a wasteful number, since it uses less digits than its factorization.

1330402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063616 (or 1063613 counting only the distinct ones).

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

The square root of 1330402221 is about 36474.6791761079. The cubic root of 1330402221 is about 1099.8352979301.

Adding to 1330402221 its reverse (1222040331), we get a palindrome (2552442552).

The spelling of 1330402221 in words is "one billion, three hundred thirty million, four hundred two thousand, two hundred twenty-one".