7043042221 has 8 divisors (see below), whose sum is σ = 7359644160. Its totient is φ = 6727305552.

The previous prime is 7043042203. The next prime is 7043042257. The reversal of 7043042221 is 1222403407.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7043042221 - 2¹⁷ = 7042911149 is a prime.

It is a super-2 number, since 2×7043042221² = 99208887453577225682, which contains 22 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 (7043042021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199645 + ... + 232258.

It is an arithmetic number, because the mean of its divisors is an integer number (919955520).

Almost surely, 2^7043042221 is an apocalyptic number.

It is an amenable number.

7043042221 is a deficient number, since it is larger than the sum of its proper divisors (316601939).

7043042221 is a wasteful number, since it uses less digits than its factorization.

7043042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432635.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 7043042221 is about 83922.8349199430. The cubic root of 7043042221 is about 1916.8439742444.

Adding to 7043042221 its reverse (1222403407), we get a palindrome (8265445628).

The spelling of 7043042221 in words is "seven billion, forty-three million, forty-two thousand, two hundred twenty-one".