122421125000 has 56 divisors (see below), whose sum is σ = 286921132050. Its totient is φ = 48968400000.

The previous prime is 122421124981. The next prime is 122421125009. The reversal of 122421125000 is 521124221.

It can be written as a sum of positive squares in 7 ways, for example, as 94926842404 + 27494282596 = 308102^2 + 165814^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122421125009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 364685 + ... + 614684.

Almost surely, 2^122421125000 is an apocalyptic number.

122421125000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122421125000 is an abundant number, since it is smaller than the sum of its proper divisors (164500007050).

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

122421125000 is an frugal number, since it uses more digits than its factorization.

122421125000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979405 (or 979376 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 122421125000 its reverse (521124221), we get a palindrome (122942249221).

The spelling of 122421125000 in words is "one hundred twenty-two billion, four hundred twenty-one million, one hundred twenty-five thousand".