122541320000 has 140 divisors (see below), whose sum is σ = 331487714976. Its totient is φ = 44560320000.

The previous prime is 122541319993. The next prime is 122541320023. The reversal of 122541320000 is 23145221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 300749 + ... + 579251.

Almost surely, 2^122541320000 is an apocalyptic number.

122541320000 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 122541320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165743857488).

122541320000 is an abundant number, since it is smaller than the sum of its proper divisors (208946394976).

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

122541320000 is an equidigital number, since it uses as much as digits as its factorization.

122541320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278546 (or 278521 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 122541320000 its reverse (23145221), we get a palindrome (122564465221).

The spelling of 122541320000 in words is "one hundred twenty-two billion, five hundred forty-one million, three hundred twenty thousand".