30300222181 has 2 divisors, whose sum is σ = 30300222182. Its totient is φ = 30300222180.

The previous prime is 30300222109. The next prime is 30300222191. The reversal of 30300222181 is 18122200303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20727360900 + 9572861281 = 143970^2 + 97841^2 .

It is an emirp because it is prime and its reverse (18122200303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30300222181 - 2⁷ = 30300222053 is a prime.

It is a super-2 number, since 2×30300222181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30300222191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15150111090 + 15150111091.

It is an arithmetic number, because the mean of its divisors is an integer number (15150111091).

Almost surely, 2^30300222181 is an apocalyptic number.

It is an amenable number.

30300222181 is a deficient number, since it is larger than the sum of its proper divisors (1).

30300222181 is an equidigital number, since it uses as much as digits as its factorization.

30300222181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 30300222181 its reverse (18122200303), we get a palindrome (48422422484).

The spelling of 30300222181 in words is "thirty billion, three hundred million, two hundred twenty-two thousand, one hundred eighty-one".