320011224012 has 120 divisors (see below), whose sum is σ = 839508061392. Its totient is φ = 106296883200.

The previous prime is 320011223993. The next prime is 320011224023. The reversal of 320011224012 is 210422110023.

It is a happy number.

It is a super-2 number, since 2×320011224012² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 140786908 + ... + 140789180.

Almost surely, 2^320011224012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320011224012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419754030696).

320011224012 is an abundant number, since it is smaller than the sum of its proper divisors (519496837380).

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

320011224012 is a wasteful number, since it uses less digits than its factorization.

320011224012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3610 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 320011224012 its reverse (210422110023), we get a palindrome (530433334035).

The spelling of 320011224012 in words is "three hundred twenty billion, eleven million, two hundred twenty-four thousand, twelve".