4125191220 has 192 divisors, whose sum is σ = 13720250880. Its totient is φ = 1026432000.

The previous prime is 4125191183. The next prime is 4125191263. The reversal of 4125191220 is 221915214.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 505170 + ... + 513270.

It is an arithmetic number, because the mean of its divisors is an integer number (71459640).

Almost surely, 2^4125191220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4125191220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6860125440).

4125191220 is an abundant number, since it is smaller than the sum of its proper divisors (9595059660).

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

4125191220 is a wasteful number, since it uses less digits than its factorization.

4125191220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8183 (or 8175 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4125191220 is about 64227.6515217550. The cubic root of 4125191220 is about 1603.7919462196.

The spelling of 4125191220 in words is "four billion, one hundred twenty-five million, one hundred ninety-one thousand, two hundred twenty".