12122021121071 has 2 divisors, whose sum is σ = 12122021121072. Its totient is φ = 12122021121070.

The previous prime is 12122021121061. The next prime is 12122021121101. The reversal of 12122021121071 is 17012112022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12122021121071 - 2³⁴ = 12104841251887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122021121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061010560535 + 6061010560536.

It is an arithmetic number, because the mean of its divisors is an integer number (6061010560536).

Almost surely, 2^{12122021121071} is an apocalyptic number.

12122021121071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122021121071 is an equidigital number, since it uses as much as digits as its factorization.

12122021121071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 12122021121071 its reverse (17012112022121), we get a palindrome (29134133143192).

The spelling of 12122021121071 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, seventy-one".