415560222221 has 2 divisors, whose sum is σ = 415560222222. Its totient is φ = 415560222220.

The previous prime is 415560222163. The next prime is 415560222239. The reversal of 415560222221 is 122222065514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385468381321 + 30091840900 = 620861^2 + 173470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415560222221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415560222271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207780111110 + 207780111111.

It is an arithmetic number, because the mean of its divisors is an integer number (207780111111).

Almost surely, 2^415560222221 is an apocalyptic number.

It is an amenable number.

415560222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

415560222221 is an equidigital number, since it uses as much as digits as its factorization.

415560222221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 415560222221 its reverse (122222065514), we get a palindrome (537782287735).

The spelling of 415560222221 in words is "four hundred fifteen billion, five hundred sixty million, two hundred twenty-two thousand, two hundred twenty-one".