1204514221 has 2 divisors, whose sum is σ = 1204514222. Its totient is φ = 1204514220.

The previous prime is 1204514197. The next prime is 1204514249. The reversal of 1204514221 is 1224154021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1080436900 + 124077321 = 32870^2 + 11139^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204514221 - 2⁵ = 1204514189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1204514192 and 1204514201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204524221) 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 as a sum of consecutive naturals, namely, 602257110 + 602257111.

It is an arithmetic number, because the mean of its divisors is an integer number (602257111).

Almost surely, 2^1204514221 is an apocalyptic number.

It is an amenable number.

1204514221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204514221 is an equidigital number, since it uses as much as digits as its factorization.

1204514221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1204514221 is about 34706.1121562182. The cubic root of 1204514221 is about 1063.9894227589.

Adding to 1204514221 its reverse (1224154021), we get a palindrome (2428668242).

The spelling of 1204514221 in words is "one billion, two hundred four million, five hundred fourteen thousand, two hundred twenty-one".