30122221231213 has 2 divisors, whose sum is σ = 30122221231214. Its totient is φ = 30122221231212.

The previous prime is 30122221231177. The next prime is 30122221231259. The reversal of 30122221231213 is 31213212222103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27361300024809 + 2760921206404 = 5230803^2 + 1661602^2 .

It is an emirp because it is prime and its reverse (31213212222103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30122221231213 - 2²¹ = 30122219134061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30122221231013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061110615606 + 15061110615607.

It is an arithmetic number, because the mean of its divisors is an integer number (15061110615607).

Almost surely, 2^{30122221231213} is an apocalyptic number.

It is an amenable number.

30122221231213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122221231213 is an equidigital number, since it uses as much as digits as its factorization.

30122221231213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 30122221231213 its reverse (31213212222103), we get a palindrome (61335433453316).

The spelling of 30122221231213 in words is "thirty trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred thirteen".