30210211121 has 2 divisors, whose sum is σ = 30210211122. Its totient is φ = 30210211120.

The previous prime is 30210211111. The next prime is 30210211127. The reversal of 30210211121 is 12111201203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20962696225 + 9247514896 = 144785^2 + 96164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30210211121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30210211096 and 30210211105.

It is not a weakly prime, because it can be changed into another prime (30210211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105105560 + 15105105561.

It is an arithmetic number, because the mean of its divisors is an integer number (15105105561).

Almost surely, 2^30210211121 is an apocalyptic number.

It is an amenable number.

30210211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30210211121 is an equidigital number, since it uses as much as digits as its factorization.

30210211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 30210211121 its reverse (12111201203), we get a palindrome (42321412324).

The spelling of 30210211121 in words is "thirty billion, two hundred ten million, two hundred eleven thousand, one hundred twenty-one".