1302221330 has 16 divisors (see below), whose sum is σ = 2350289304. Its totient is φ = 519490560.

The previous prime is 1302221321. The next prime is 1302221353. The reversal of 1302221330 is 331222031.

It can be written as a sum of positive squares in 4 ways, for example, as 1201800889 + 100420441 = 34667^2 + 10021^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1302221299 and 1302221308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170831 + ... + 178290.

Almost surely, 2^1302221330 is an apocalyptic number.

1302221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1302221330 is a deficient number, since it is larger than the sum of its proper divisors (1048067974).

1302221330 is a wasteful number, since it uses less digits than its factorization.

1302221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349501.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1302221330 is about 36086.3039115950. The cubic root of 1302221330 is about 1092.0141559392.

Adding to 1302221330 its reverse (331222031), we get a palindrome (1633443361).

The spelling of 1302221330 in words is "one billion, three hundred two million, two hundred twenty-one thousand, three hundred thirty".