122203400240 has 40 divisors (see below), whose sum is σ = 285710217840. Its totient is φ = 48608274176.

The previous prime is 122203400227. The next prime is 122203400251. The reversal of 122203400240 is 42004302221.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4252559 + ... + 4281198.

It is an arithmetic number, because the mean of its divisors is an integer number (7142755446).

Almost surely, 2^122203400240 is an apocalyptic number.

122203400240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122203400240 is an abundant number, since it is smaller than the sum of its proper divisors (163506817600).

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

122203400240 is a wasteful number, since it uses less digits than its factorization.

122203400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8533949 (or 8533943 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 122203400240 its reverse (42004302221), we get a palindrome (164207702461).

The spelling of 122203400240 in words is "one hundred twenty-two billion, two hundred three million, four hundred thousand, two hundred forty".