3122120544512 has 72 divisors (see below), whose sum is σ = 6452519738112. Its totient is φ = 1506138163200.

The previous prime is 3122120544457. The next prime is 3122120544551. The reversal of 3122120544512 is 2154450212213.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2032538 + ... + 3221094.

It is an arithmetic number, because the mean of its divisors is an integer number (89618329696).

Almost surely, 2^{3122120544512} is an apocalyptic number.

3122120544512 is a gapful number since it is divisible by the number (32) 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 3122120544512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3226259869056).

3122120544512 is an abundant number, since it is smaller than the sum of its proper divisors (3330399193600).

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

3122120544512 is a wasteful number, since it uses less digits than its factorization.

3122120544512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188935 (or 1188921 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 3122120544512 its reverse (2154450212213), we get a palindrome (5276570756725).

The spelling of 3122120544512 in words is "three trillion, one hundred twenty-two billion, one hundred twenty million, five hundred forty-four thousand, five hundred twelve".