322112012231220 has 96 divisors (see below), whose sum is σ = 908512698441600. Its totient is φ = 85268204603904.

The previous prime is 322112012231209. The next prime is 322112012231227. The reversal of 322112012231220 is 22132210211223.

It is a super-2 number, since 2×322112012231220² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322112012231227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66352126 + ... + 71041034.

It is an arithmetic number, because the mean of its divisors is an integer number (9463673942100).

Almost surely, 2^{322112012231220} is an apocalyptic number.

322112012231220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322112012231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454256349220800).

322112012231220 is an abundant number, since it is smaller than the sum of its proper divisors (586400686210380).

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

322112012231220 is a wasteful number, since it uses less digits than its factorization.

322112012231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697297 (or 4697295 counting only the distinct ones).

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

Adding to 322112012231220 its reverse (22132210211223), we get a palindrome (344244222442443).

The spelling of 322112012231220 in words is "three hundred twenty-two trillion, one hundred twelve billion, twelve million, two hundred thirty-one thousand, two hundred twenty".