125002122000 has 640 divisors, whose sum is σ = 504571991040. Its totient is φ = 25959628800.

The previous prime is 125002121989. The next prime is 125002122013. The reversal of 125002122000 is 221200521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20702982 + ... + 20709018.

It is an arithmetic number, because the mean of its divisors is an integer number (788393736).

Almost surely, 2^125002122000 is an apocalyptic number.

125002122000 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 125002122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252285995520).

125002122000 is an abundant number, since it is smaller than the sum of its proper divisors (379569869040).

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

125002122000 is a wasteful number, since it uses less digits than its factorization.

125002122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116 (or 6100 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 125002122000 its reverse (221200521), we get a palindrome (125223322521).

The spelling of 125002122000 in words is "one hundred twenty-five billion, two million, one hundred twenty-two thousand".