4135120220 has 96 divisors (see below), whose sum is σ = 10875949056. Its totient is φ = 1282982400.

The previous prime is 4135120169. The next prime is 4135120279. The reversal of 4135120220 is 220215314.

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

It is a junction number, because it is equal to n+sod(n) for n = 4135120192 and 4135120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337400 + ... + 349440.

It is an arithmetic number, because the mean of its divisors is an integer number (113291136).

Almost surely, 2^4135120220 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 4135120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5437974528).

4135120220 is an abundant number, since it is smaller than the sum of its proper divisors (6740828836).

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

4135120220 is a wasteful number, since it uses less digits than its factorization.

4135120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12291 (or 12289 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4135120220 is about 64304.9004353478. The cubic root of 4135120220 is about 1605.0776475344.

Adding to 4135120220 its reverse (220215314), we get a palindrome (4355335534).

The spelling of 4135120220 in words is "four billion, one hundred thirty-five million, one hundred twenty thousand, two hundred twenty".