322231130021020 has 192 divisors, whose sum is σ = 757846248768000. Its totient is φ = 114102524067840.

The previous prime is 322231130020991. The next prime is 322231130021033. The reversal of 322231130021020 is 20120031132223.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 322231130020982 and 322231130021000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 631014756 + ... + 631525204.

It is an arithmetic number, because the mean of its divisors is an integer number (3947115879000).

Almost surely, 2^{322231130021020} 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 322231130021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378923124384000).

322231130021020 is an abundant number, since it is smaller than the sum of its proper divisors (435615118746980).

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

322231130021020 is a wasteful number, since it uses less digits than its factorization.

322231130021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511028 (or 511026 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 322231130021020 its reverse (20120031132223), we get a palindrome (342351161153243).

The spelling of 322231130021020 in words is "three hundred twenty-two trillion, two hundred thirty-one billion, one hundred thirty million, twenty-one thousand, twenty".