30000132221 has 2 divisors, whose sum is σ = 30000132222. Its totient is φ = 30000132220.

The previous prime is 30000132191. The next prime is 30000132223. The reversal of 30000132221 is 12223100003.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21114996100 + 8885136121 = 145310^2 + 94261^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000132221 - 2³⁴ = 12820263037 is a prime.

Together with 30000132223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30000132196 and 30000132205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30000132223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000066110 + 15000066111.

It is an arithmetic number, because the mean of its divisors is an integer number (15000066111).

Almost surely, 2^30000132221 is an apocalyptic number.

It is an amenable number.

30000132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000132221 is an equidigital number, since it uses as much as digits as its factorization.

30000132221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30000132221 its reverse (12223100003), we get a palindrome (42223232224).

The spelling of 30000132221 in words is "thirty billion, one hundred thirty-two thousand, two hundred twenty-one".