30215222189 has 2 divisors, whose sum is σ = 30215222190. Its totient is φ = 30215222188.

The previous prime is 30215222047. The next prime is 30215222201. The reversal of 30215222189 is 98122251203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23435017225 + 6780204964 = 153085^2 + 82342^2 .

It is an emirp because it is prime and its reverse (98122251203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30215222189 - 2¹² = 30215218093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30215222689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15107611094 + 15107611095.

It is an arithmetic number, because the mean of its divisors is an integer number (15107611095).

Almost surely, 2^30215222189 is an apocalyptic number.

It is an amenable number.

30215222189 is a deficient number, since it is larger than the sum of its proper divisors (1).

30215222189 is an equidigital number, since it uses as much as digits as its factorization.

30215222189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 30215222189 in words is "thirty billion, two hundred fifteen million, two hundred twenty-two thousand, one hundred eighty-nine".