4024122021 has 12 divisors (see below), whose sum is σ = 6065343648. Its totient is φ = 2566106664.

The previous prime is 4024121971. The next prime is 4024122023. The reversal of 4024122021 is 1202214204.

4024122021 is a `hidden beast` number, since 402 + 41 + 220 + 2 + 1 = 666.

It is not a de Polignac number, because 4024122021 - 2⁶ = 4024121957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4024121985 and 4024122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4024122023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9719895 + ... + 9720308.

It is an arithmetic number, because the mean of its divisors is an integer number (505445304).

Almost surely, 2^4024122021 is an apocalyptic number.

It is an amenable number.

4024122021 is a deficient number, since it is larger than the sum of its proper divisors (2041221627).

4024122021 is a wasteful number, since it uses less digits than its factorization.

4024122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19440232 (or 19440229 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4024122021 is about 63435.9678810058. The cubic root of 4024122021 is about 1590.5856024975.

Adding to 4024122021 its reverse (1202214204), we get a palindrome (5226336225).

The spelling of 4024122021 in words is "four billion, twenty-four million, one hundred twenty-two thousand, twenty-one".