30122101 has 2 divisors, whose sum is σ = 30122102. Its totient is φ = 30122100.

The previous prime is 30122093. The next prime is 30122117. The reversal of 30122101 is 10122103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 680625 = 5426^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 30122101 - 2³ = 30122093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30122161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061050 + 15061051.

It is an arithmetic number, because the mean of its divisors is an integer number (15061051).

Almost surely, 2^30122101 is an apocalyptic number.

It is an amenable number.

30122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122101 is an equidigital number, since it uses as much as digits as its factorization.

30122101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30122101 is about 5488.3605020079. The cubic root of 30122101 is about 311.1442313048.

Adding to 30122101 its reverse (10122103), we get a palindrome (40244204).

The spelling of 30122101 in words is "thirty million, one hundred twenty-two thousand, one hundred one".