122445803520 has 416 divisors, whose sum is σ = 440977228800. Its totient is φ = 32227393536.

The previous prime is 122445803509. The next prime is 122445803537. The reversal of 122445803520 is 25308544221.

122445803520 is a `hidden beast` number, since 1 + 2 + 2 + 44 + 580 + 35 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43682439 + ... + 43685241.

Almost surely, 2^122445803520 is an apocalyptic number.

122445803520 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 122445803520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220488614400).

122445803520 is an abundant number, since it is smaller than the sum of its proper divisors (318531425280).

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

122445803520 is an equidigital number, since it uses as much as digits as its factorization.

122445803520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 122445803520 in words is "one hundred twenty-two billion, four hundred forty-five million, eight hundred three thousand, five hundred twenty".