4102001220 has 96 divisors (see below), whose sum is σ = 11967492096. Its totient is φ = 1048636800.

The previous prime is 4102001207. The next prime is 4102001227. The reversal of 4102001220 is 221002014.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 4102001196 and 4102001205.

It is not an unprimeable number, because it can be changed into a prime (4102001227) 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, 188715 + ... + 209325.

It is an arithmetic number, because the mean of its divisors is an integer number (124661376).

Almost surely, 2^4102001220 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 4102001220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5983746048).

4102001220 is an abundant number, since it is smaller than the sum of its proper divisors (7865490876).

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

4102001220 is a wasteful number, since it uses less digits than its factorization.

4102001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20761 (or 20759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 4102001220 is about 64046.8673706997. The cubic root of 4102001220 is about 1600.7810275396.

Adding to 4102001220 its reverse (221002014), we get a palindrome (4323003234).

The spelling of 4102001220 in words is "four billion, one hundred two million, one thousand, two hundred twenty".