30212213197 has 2 divisors, whose sum is σ = 30212213198. Its totient is φ = 30212213196.

The previous prime is 30212213191. The next prime is 30212213243. The reversal of 30212213197 is 79131221203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15568551076 + 14643662121 = 124774^2 + 121011^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212213197 - 2¹¹ = 30212211149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30212213191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106106598 + 15106106599.

It is an arithmetic number, because the mean of its divisors is an integer number (15106106599).

Almost surely, 2^30212213197 is an apocalyptic number.

It is an amenable number.

30212213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212213197 is an equidigital number, since it uses as much as digits as its factorization.

30212213197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 30212213197 in words is "thirty billion, two hundred twelve million, two hundred thirteen thousand, one hundred ninety-seven".