122366659500 has 336 divisors, whose sum is σ = 421802690400. Its totient is φ = 30911932800.

The previous prime is 122366659469. The next prime is 122366659501. The reversal of 122366659500 is 5956663221.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (122366659501) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 6916666 + ... + 6934334.

It is an arithmetic number, because the mean of its divisors is an integer number (1255365150).

Almost surely, 2^122366659500 is an apocalyptic number.

122366659500 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 122366659500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210901345200).

122366659500 is an abundant number, since it is smaller than the sum of its proper divisors (299436030900).

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

122366659500 is a wasteful number, since it uses less digits than its factorization.

122366659500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17725 (or 17698 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 122366659500 in words is "one hundred twenty-two billion, three hundred sixty-six million, six hundred fifty-nine thousand, five hundred".