322130131220 has 24 divisors (see below), whose sum is σ = 676562733000. Its totient is φ = 128835012992.

The previous prime is 322130131201. The next prime is 322130131223. The reversal of 322130131220 is 22131031223.

It can be written as a sum of positive squares in 4 ways, for example, as 12588304 + 322117542916 = 3548^2 + 567554^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 322130131192 and 322130131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322130131223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909395 + ... + 1212954.

It is an arithmetic number, because the mean of its divisors is an integer number (28190113875).

Almost surely, 2^322130131220 is an apocalyptic number.

It is an amenable number.

322130131220 is an abundant number, since it is smaller than the sum of its proper divisors (354432601780).

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

322130131220 is a wasteful number, since it uses less digits than its factorization.

322130131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129947 (or 2129945 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 322130131220 its reverse (22131031223), we get a palindrome (344261162443).

The spelling of 322130131220 in words is "three hundred twenty-two billion, one hundred thirty million, one hundred thirty-one thousand, two hundred twenty".