30142022221 has 2 divisors, whose sum is σ = 30142022222. Its totient is φ = 30142022220.

The previous prime is 30142022219. The next prime is 30142022297. The reversal of 30142022221 is 12222024103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30140432100 + 1590121 = 173610^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 30142022221 - 2¹ = 30142022219 is a prime.

Together with 30142022219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30142022201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071011110 + 15071011111.

It is an arithmetic number, because the mean of its divisors is an integer number (15071011111).

Almost surely, 2^30142022221 is an apocalyptic number.

It is an amenable number.

30142022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30142022221 is an equidigital number, since it uses as much as digits as its factorization.

30142022221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 30142022221 its reverse (12222024103), we get a palindrome (42364046324).

The spelling of 30142022221 in words is "thirty billion, one hundred forty-two million, twenty-two thousand, two hundred twenty-one".