1322221330320 has 80 divisors (see below), whose sum is σ = 4471512144192. Its totient is φ = 320538503680.

The previous prime is 1322221330319. The next prime is 1322221330379. The reversal of 1322221330320 is 230331222231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250418067 + ... + 250423346.

Almost surely, 2^{1322221330320} is an apocalyptic number.

1322221330320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322221330320 is an abundant number, since it is smaller than the sum of its proper divisors (3149290813872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1322221330320 is a wasteful number, since it uses less digits than its factorization.

1322221330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500841440 (or 500841434 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1322221330320 its reverse (230331222231), we get a palindrome (1552552552551).

The spelling of 1322221330320 in words is "one trillion, three hundred twenty-two billion, two hundred twenty-one million, three hundred thirty thousand, three hundred twenty".