1032223021 has 4 divisors (see below), whose sum is σ = 1041357852. Its totient is φ = 1023088192.

The previous prime is 1032223009. The next prime is 1032223037. The reversal of 1032223021 is 1203222301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1203222301 = 21929 ⋅54869.

It can be written as a sum of positive squares in 2 ways, for example, as 386554921 + 645668100 = 19661^2 + 25410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032223021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1032222986 and 1032223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032223001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4567246 + ... + 4567471.

It is an arithmetic number, because the mean of its divisors is an integer number (260339463).

Almost surely, 2^1032223021 is an apocalyptic number.

It is an amenable number.

1032223021 is a deficient number, since it is larger than the sum of its proper divisors (9134831).

1032223021 is an equidigital number, since it uses as much as digits as its factorization.

1032223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134830.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1032223021 is about 32128.2277911496. The cubic root of 1032223021 is about 1010.6276597274.

Adding to 1032223021 its reverse (1203222301), we get a palindrome (2235445322).

The spelling of 1032223021 in words is "one billion, thirty-two million, two hundred twenty-three thousand, twenty-one".