1300221530 has 64 divisors (see below), whose sum is σ = 2498715648. Its totient is φ = 486319680.

The previous prime is 1300221529. The next prime is 1300221541. The reversal of 1300221530 is 351220031.

It is a junction number, because it is equal to n+sod(n) for n = 1300221499 and 1300221508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1372517 + ... + 1373463.

It is an arithmetic number, because the mean of its divisors is an integer number (39042432).

Almost surely, 2^1300221530 is an apocalyptic number.

1300221530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1300221530 is a deficient number, since it is larger than the sum of its proper divisors (1198494118).

1300221530 is a wasteful number, since it uses less digits than its factorization.

1300221530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1300221530 is about 36058.5846921368. The cubic root of 1300221530 is about 1091.4548734542.

Adding to 1300221530 its reverse (351220031), we get a palindrome (1651441561).

The spelling of 1300221530 in words is "one billion, three hundred million, two hundred twenty-one thousand, five hundred thirty".