1320221230 has 16 divisors (see below), whose sum is σ = 2458343520. Its totient is φ = 509878432.

The previous prime is 1320221209. The next prime is 1320221233. The reversal of 1320221230 is 321220231.

It is a super-2 number, since 2×1320221230² = 3485968192285425800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320221233) 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 7 ways as a sum of consecutive naturals, for example, 2275954 + ... + 2276533.

It is an arithmetic number, because the mean of its divisors is an integer number (153646470).

Almost surely, 2^1320221230 is an apocalyptic number.

1320221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320221230 is a deficient number, since it is larger than the sum of its proper divisors (1138122290).

1320221230 is a wasteful number, since it uses less digits than its factorization.

1320221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552523.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1320221230 is about 36334.8486992859. The cubic root of 1320221230 is about 1097.0225900811.

Adding to 1320221230 its reverse (321220231), we get a palindrome (1641441461).

Subtracting from 1320221230 its reverse (321220231), we obtain a palindrome (999000999).

The spelling of 1320221230 in words is "one billion, three hundred twenty million, two hundred twenty-one thousand, two hundred thirty".