12011211112213 has 2 divisors, whose sum is σ = 12011211112214. Its totient is φ = 12011211112212.

The previous prime is 12011211112171. The next prime is 12011211112217. The reversal of 12011211112213 is 31221111211021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8509454907409 + 3501756204804 = 2917097^2 + 1871298^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011211112213 - 2¹⁷ = 12011210981141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011211112217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005605556106 + 6005605556107.

It is an arithmetic number, because the mean of its divisors is an integer number (6005605556107).

Almost surely, 2^{12011211112213} is an apocalyptic number.

It is an amenable number.

12011211112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011211112213 is an equidigital number, since it uses as much as digits as its factorization.

12011211112213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 12011211112213 its reverse (31221111211021), we get a palindrome (43232322323234).

The spelling of 12011211112213 in words is "twelve trillion, eleven billion, two hundred eleven million, one hundred twelve thousand, two hundred thirteen".