4121220500 has 96 divisors (see below), whose sum is σ = 9437395968. Its totient is φ = 1569216000.

The previous prime is 4121220449. The next prime is 4121220503. The reversal of 4121220500 is 50221214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121220503) 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 31 ways as a sum of consecutive naturals, for example, 2770757 + ... + 2772243.

It is an arithmetic number, because the mean of its divisors is an integer number (98306208).

Almost surely, 2^4121220500 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 4121220500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4718697984).

4121220500 is an abundant number, since it is smaller than the sum of its proper divisors (5316175468).

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

4121220500 is a wasteful number, since it uses less digits than its factorization.

4121220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 4121220500 is about 64196.7327829073. The cubic root of 4121220500 is about 1603.2772021541.

Adding to 4121220500 its reverse (50221214), we get a palindrome (4171441714).

The spelling of 4121220500 in words is "four billion, one hundred twenty-one million, two hundred twenty thousand, five hundred".