30022132181 has 2 divisors, whose sum is σ = 30022132182. Its totient is φ = 30022132180.

The previous prime is 30022132171. The next prime is 30022132219. The reversal of 30022132181 is 18123122003.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18926880625 + 11095251556 = 137575^2 + 105334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30022132181 is a prime.

It is a super-2 number, since 2×30022132181² (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 (30022132121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15011066090 + 15011066091.

It is an arithmetic number, because the mean of its divisors is an integer number (15011066091).

Almost surely, 2^30022132181 is an apocalyptic number.

It is an amenable number.

30022132181 is a deficient number, since it is larger than the sum of its proper divisors (1).

30022132181 is an equidigital number, since it uses as much as digits as its factorization.

30022132181 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 23.

Adding to 30022132181 its reverse (18123122003), we get a palindrome (48145254184).

The spelling of 30022132181 in words is "thirty billion, twenty-two million, one hundred thirty-two thousand, one hundred eighty-one".