30121199201 has 2 divisors, whose sum is σ = 30121199202. Its totient is φ = 30121199200.

The previous prime is 30121199183. The next prime is 30121199221. The reversal of 30121199201 is 10299112103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28637100625 + 1484098576 = 169225^2 + 38524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30121199201 is a prime.

It is not a weakly prime, because it can be changed into another prime (30121199221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060599600 + 15060599601.

It is an arithmetic number, because the mean of its divisors is an integer number (15060599601).

Almost surely, 2^30121199201 is an apocalyptic number.

It is an amenable number.

30121199201 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121199201 is an equidigital number, since it uses as much as digits as its factorization.

30121199201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 30121199201 in words is "thirty billion, one hundred twenty-one million, one hundred ninety-nine thousand, two hundred one".