1004325221 has 2 divisors, whose sum is σ = 1004325222. Its totient is φ = 1004325220.

The previous prime is 1004325211. The next prime is 1004325239. The reversal of 1004325221 is 1225234001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899160196 + 105165025 = 29986^2 + 10255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004325221 - 2¹⁰ = 1004324197 is a prime.

It is a super-3 number, since 3×1004325221³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1004325193 and 1004325202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004325211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502162610 + 502162611.

It is an arithmetic number, because the mean of its divisors is an integer number (502162611).

Almost surely, 2^1004325221 is an apocalyptic number.

It is an amenable number.

1004325221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004325221 is an equidigital number, since it uses as much as digits as its factorization.

1004325221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1004325221 is about 31691.0905618598. The cubic root of 1004325221 is about 1001.4396666985.

Adding to 1004325221 its reverse (1225234001), we get a palindrome (2229559222).

The spelling of 1004325221 in words is "one billion, four million, three hundred twenty-five thousand, two hundred twenty-one".