4043020102221 has 4 divisors (see below), whose sum is σ = 5390693469632. Its totient is φ = 2695346734812.

The previous prime is 4043020102217. The next prime is 4043020102223. The reversal of 4043020102221 is 1222010203404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4043020102221 - 2² = 4043020102217 is a prime.

It is a super-3 number, since 3×4043020102221³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043020102223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673836683701 + ... + 673836683706.

It is an arithmetic number, because the mean of its divisors is an integer number (1347673367408).

Almost surely, 2^{4043020102221} is an apocalyptic number.

It is an amenable number.

4043020102221 is a deficient number, since it is larger than the sum of its proper divisors (1347673367411).

4043020102221 is a wasteful number, since it uses less digits than its factorization.

4043020102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347673367410.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 4043020102221 its reverse (1222010203404), we get a palindrome (5265030305625).

The spelling of 4043020102221 in words is "four trillion, forty-three billion, twenty million, one hundred two thousand, two hundred twenty-one".