121122313320 has 128 divisors (see below), whose sum is σ = 386102816640. Its totient is φ = 30291763200.

The previous prime is 121122313237. The next prime is 121122313321. The reversal of 121122313320 is 23313221121.

It is a super-2 number, since 2×121122313320² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121122313321) 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, 472420 + ... + 682220.

It is an arithmetic number, because the mean of its divisors is an integer number (3016428255).

Almost surely, 2^121122313320 is an apocalyptic number.

121122313320 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 121122313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193051408320).

121122313320 is an abundant number, since it is smaller than the sum of its proper divisors (264980503320).

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

121122313320 is a wasteful number, since it uses less digits than its factorization.

121122313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210115 (or 210111 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121122313320 its reverse (23313221121), we get a palindrome (144435534441).

The spelling of 121122313320 in words is "one hundred twenty-one billion, one hundred twenty-two million, three hundred thirteen thousand, three hundred twenty".