4021102420 has 48 divisors (see below), whose sum is σ = 8865682560. Its totient is φ = 1529041536.

The previous prime is 4021102417. The next prime is 4021102427. The reversal of 4021102420 is 242011204.

It is a junction number, because it is equal to n+sod(n) for n = 4021102394 and 4021102403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021102427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48166 + ... + 101794.

It is an arithmetic number, because the mean of its divisors is an integer number (184701720).

Almost surely, 2^4021102420 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 4021102420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4432841280).

4021102420 is an abundant number, since it is smaller than the sum of its proper divisors (4844580140).

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

4021102420 is a wasteful number, since it uses less digits than its factorization.

4021102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53824 (or 53822 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4021102420 is about 63412.1630288701. The cubic root of 4021102420 is about 1590.1876576633.

Adding to 4021102420 its reverse (242011204), we get a palindrome (4263113624).

The spelling of 4021102420 in words is "four billion, twenty-one million, one hundred two thousand, four hundred twenty".