1043422221 has 16 divisors (see below), whose sum is σ = 1475993600. Its totient is φ = 653809968.

The previous prime is 1043422207. The next prime is 1043422267. The reversal of 1043422221 is 1222243401.

1043422221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1043422221 - 2⁵ = 1043422189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043422201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64831 + ... + 79308.

It is an arithmetic number, because the mean of its divisors is an integer number (92249600).

Almost surely, 2^1043422221 is an apocalyptic number.

It is an amenable number.

1043422221 is a deficient number, since it is larger than the sum of its proper divisors (432571379).

1043422221 is a wasteful number, since it uses less digits than its factorization.

1043422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144288.

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

The square root of 1043422221 is about 32302.0466998610. The cubic root of 1043422221 is about 1014.2694869009.

Adding to 1043422221 its reverse (1222243401), we get a palindrome (2265665622).

The spelling of 1043422221 in words is "one billion, forty-three million, four hundred twenty-two thousand, two hundred twenty-one".