4033420042221 has 24 divisors (see below), whose sum is σ = 5831099655264. Its totient is φ = 2686617551520.

The previous prime is 4033420042207. The next prime is 4033420042243. The reversal of 4033420042221 is 1222400243304.

4033420042221 is a `hidden beast` number, since 4 + 0 + 3 + 34 + 200 + 422 + 2 + 1 = 666.

It is not a de Polignac number, because 4033420042221 - 2⁵ = 4033420042189 is a prime.

It is a super-2 number, since 2×4033420042221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4033420042621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56110915 + ... + 56182751.

It is an arithmetic number, because the mean of its divisors is an integer number (242962485636).

Almost surely, 2^{4033420042221} is an apocalyptic number.

It is an amenable number.

4033420042221 is a deficient number, since it is larger than the sum of its proper divisors (1797679613043).

4033420042221 is a wasteful number, since it uses less digits than its factorization.

4033420042221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77161 (or 77158 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 4033420042221 its reverse (1222400243304), we get a palindrome (5255820285525).

The spelling of 4033420042221 in words is "four trillion, thirty-three billion, four hundred twenty million, forty-two thousand, two hundred twenty-one".