1322021320008 has 32 divisors (see below), whose sum is σ = 3350328007200. Its totient is φ = 434637145728.

The previous prime is 1322021319907. The next prime is 1322021320043. The reversal of 1322021320008 is 8000231202231.

It is a happy number.

It is a super-2 number, since 2×1322021320008² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1322021320008.

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, 377287438 + ... + 377290941.

It is an arithmetic number, because the mean of its divisors is an integer number (104697750225).

Almost surely, 2^{1322021320008} is an apocalyptic number.

It is an amenable number.

1322021320008 is an abundant number, since it is smaller than the sum of its proper divisors (2028306687192).

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

1322021320008 is a wasteful number, since it uses less digits than its factorization.

1322021320008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754578461 (or 754578457 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1322021320008 its reverse (8000231202231), we get a palindrome (9322252522239).

The spelling of 1322021320008 in words is "one trillion, three hundred twenty-two billion, twenty-one million, three hundred twenty thousand, eight".