30212123120111 has 2 divisors, whose sum is σ = 30212123120112. Its totient is φ = 30212123120110.

The previous prime is 30212123120093. The next prime is 30212123120119. The reversal of 30212123120111 is 11102132121203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30212123120111 - 2¹⁸ = 30212122857967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30212123120119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106061560055 + 15106061560056.

It is an arithmetic number, because the mean of its divisors is an integer number (15106061560056).

Almost surely, 2^{30212123120111} is an apocalyptic number.

30212123120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212123120111 is an equidigital number, since it uses as much as digits as its factorization.

30212123120111 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 20.

Adding to 30212123120111 its reverse (11102132121203), we get a palindrome (41314255241314).

The spelling of 30212123120111 in words is "thirty trillion, two hundred twelve billion, one hundred twenty-three million, one hundred twenty thousand, one hundred eleven".