30122200061 has 2 divisors, whose sum is σ = 30122200062. Its totient is φ = 30122200060.

The previous prime is 30122200039. The next prime is 30122200103. The reversal of 30122200061 is 16000222103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29196215161 + 925984900 = 170869^2 + 30430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30122200061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30122203061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061100030 + 15061100031.

It is an arithmetic number, because the mean of its divisors is an integer number (15061100031).

Almost surely, 2^30122200061 is an apocalyptic number.

It is an amenable number.

30122200061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122200061 is an equidigital number, since it uses as much as digits as its factorization.

30122200061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30122200061 its reverse (16000222103), we get a palindrome (46122422164).

The spelling of 30122200061 in words is "thirty billion, one hundred twenty-two million, two hundred thousand, sixty-one".