8580941221 has 2 divisors, whose sum is σ = 8580941222. Its totient is φ = 8580941220.

The previous prime is 8580941129. The next prime is 8580941251. The reversal of 8580941221 is 1221490858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4994248900 + 3586692321 = 70670^2 + 59889^2 .

It is a cyclic number.

It is not a de Polignac number, because 8580941221 - 2¹³ = 8580933029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8580941251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4290470610 + 4290470611.

It is an arithmetic number, because the mean of its divisors is an integer number (4290470611).

Almost surely, 2^8580941221 is an apocalyptic number.

It is an amenable number.

8580941221 is a deficient number, since it is larger than the sum of its proper divisors (1).

8580941221 is an equidigital number, since it uses as much as digits as its factorization.

8580941221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 8580941221 is about 92633.3699106321. The cubic root of 8580941221 is about 2047.2850215108.

The spelling of 8580941221 in words is "eight billion, five hundred eighty million, nine hundred forty-one thousand, two hundred twenty-one".