12122112231211 has 2 divisors, whose sum is σ = 12122112231212. Its totient is φ = 12122112231210.

The previous prime is 12122112231107. The next prime is 12122112231221. The reversal of 12122112231211 is 11213221122121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122112231211 - 2⁷ = 12122112231083 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122112231221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061056115605 + 6061056115606.

It is an arithmetic number, because the mean of its divisors is an integer number (6061056115606).

Almost surely, 2^{12122112231211} is an apocalyptic number.

12122112231211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122112231211 is an equidigital number, since it uses as much as digits as its factorization.

12122112231211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 22.

Adding to 12122112231211 its reverse (11213221122121), we get a palindrome (23335333353332).

The spelling of 12122112231211 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, two hundred thirty-one thousand, two hundred eleven".