30224221217 has 2 divisors, whose sum is σ = 30224221218. Its totient is φ = 30224221216.

The previous prime is 30224221189. The next prime is 30224221229. The reversal of 30224221217 is 71212242203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23908581376 + 6315639841 = 154624^2 + 79471^2 .

It is a cyclic number.

It is not a de Polignac number, because 30224221217 - 2¹⁶ = 30224155681 is a prime.

It is a super-2 number, since 2×30224221217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30224221267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15112110608 + 15112110609.

It is an arithmetic number, because the mean of its divisors is an integer number (15112110609).

Almost surely, 2^30224221217 is an apocalyptic number.

It is an amenable number.

30224221217 is a deficient number, since it is larger than the sum of its proper divisors (1).

30224221217 is an equidigital number, since it uses as much as digits as its factorization.

30224221217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 30224221217 in words is "thirty billion, two hundred twenty-four million, two hundred twenty-one thousand, two hundred seventeen".