12122011122187 has 2 divisors, whose sum is σ = 12122011122188. Its totient is φ = 12122011122186.

The previous prime is 12122011122121. The next prime is 12122011122197. The reversal of 12122011122187 is 78122111022121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122011122187 - 2¹⁹ = 12122010597899 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122011122197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061005561093 + 6061005561094.

It is an arithmetic number, because the mean of its divisors is an integer number (6061005561094).

Almost surely, 2^{12122011122187} is an apocalyptic number.

12122011122187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122011122187 is an equidigital number, since it uses as much as digits as its factorization.

12122011122187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 31.

The spelling of 12122011122187 in words is "twelve trillion, one hundred twenty-two billion, eleven million, one hundred twenty-two thousand, one hundred eighty-seven".