122021232320 has 112 divisors (see below), whose sum is σ = 318218332320. Its totient is φ = 44290277376.

The previous prime is 122021232199. The next prime is 122021232373. The reversal of 122021232320 is 23232120221.

It is a happy number.

It is a super-2 number, since 2×122021232320² (a number of 23 digits) contains 22 as substring.

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 = 122021232292 and 122021232301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3137 + ... + 494016.

It is an arithmetic number, because the mean of its divisors is an integer number (2841235110).

Almost surely, 2^122021232320 is an apocalyptic number.

122021232320 is a gapful number since it is divisible by the number (10) 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 122021232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159109166160).

122021232320 is an abundant number, since it is smaller than the sum of its proper divisors (196197100000).

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

122021232320 is a wasteful number, since it uses less digits than its factorization.

122021232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497242 (or 497232 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 122021232320 its reverse (23232120221), we get a palindrome (145253352541).

The spelling of 122021232320 in words is "one hundred twenty-two billion, twenty-one million, two hundred thirty-two thousand, three hundred twenty".