1330221425 has 24 divisors (see below), whose sum is σ = 1819701240. Its totient is φ = 958348800.

The previous prime is 1330221419. The next prime is 1330221443. The reversal of 1330221425 is 5241220331.

It can be written as a sum of positive squares in 12 ways, for example, as 890186896 + 440034529 = 29836^2 + 20977^2 .

It is not a de Polignac number, because 1330221425 - 2²⁶ = 1263112561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1330221425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36590 + ... + 63239.

It is an arithmetic number, because the mean of its divisors is an integer number (75820885).

Almost surely, 2^1330221425 is an apocalyptic number.

It is an amenable number.

1330221425 is a deficient number, since it is larger than the sum of its proper divisors (489479815).

1330221425 is a wasteful number, since it uses less digits than its factorization.

1330221425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99893 (or 99888 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1330221425 is about 36472.2007150652. The cubic root of 1330221425 is about 1099.7854746943.

Adding to 1330221425 its reverse (5241220331), we get a palindrome (6571441756).

The spelling of 1330221425 in words is "one billion, three hundred thirty million, two hundred twenty-one thousand, four hundred twenty-five".