4120021020 has 24 divisors (see below), whose sum is σ = 11536059024. Its totient is φ = 1098672256.

The previous prime is 4120021001. The next prime is 4120021033. The reversal of 4120021020 is 201200214.

It is a super-3 number, since 3×4120021020³ (a number of 30 digits) contains 333 as substring.

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 = 4120020987 and 4120021005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34333449 + ... + 34333568.

It is an arithmetic number, because the mean of its divisors is an integer number (480669126).

Almost surely, 2^4120021020 is an apocalyptic number.

It is an amenable number.

4120021020 is an abundant number, since it is smaller than the sum of its proper divisors (7416038004).

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

4120021020 is a wasteful number, since it uses less digits than its factorization.

4120021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68667029 (or 68667027 counting only the distinct ones).

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

The square root of 4120021020 is about 64187.3898830604. The cubic root of 4120021020 is about 1603.1216426105.

Adding to 4120021020 its reverse (201200214), we get a palindrome (4321221234).

The spelling of 4120021020 in words is "four billion, one hundred twenty million, twenty-one thousand, twenty".