1043152221 has 4 divisors (see below), whose sum is σ = 1390869632. Its totient is φ = 695434812.

The previous prime is 1043152213. The next prime is 1043152223. The reversal of 1043152221 is 1222513401.

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 1043152221 - 2³ = 1043152213 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 (1043152223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173858701 + ... + 173858706.

It is an arithmetic number, because the mean of its divisors is an integer number (347717408).

Almost surely, 2^1043152221 is an apocalyptic number.

It is an amenable number.

1043152221 is a deficient number, since it is larger than the sum of its proper divisors (347717411).

1043152221 is an equidigital number, since it uses as much as digits as its factorization.

1043152221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347717410.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1043152221 is about 32297.8671277222. The cubic root of 1043152221 is about 1014.1819939122.

Adding to 1043152221 its reverse (1222513401), we get a palindrome (2265665622).

The spelling of 1043152221 in words is "one billion, forty-three million, one hundred fifty-two thousand, two hundred twenty-one".