12122012222101 has 2 divisors, whose sum is σ = 12122012222102. Its totient is φ = 12122012222100.

The previous prime is 12122012222087. The next prime is 12122012222147. The reversal of 12122012222101 is 10122221022121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11080743000625 + 1041269221476 = 3328775^2 + 1020426^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122012222101 - 2¹¹ = 12122012220053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122012229101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061006111050 + 6061006111051.

It is an arithmetic number, because the mean of its divisors is an integer number (6061006111051).

Almost surely, 2^{12122012222101} is an apocalyptic number.

It is an amenable number.

12122012222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122012222101 is an equidigital number, since it uses as much as digits as its factorization.

12122012222101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122012222101 its reverse (10122221022121), we get a palindrome (22244233244222).

The spelling of 12122012222101 in words is "twelve trillion, one hundred twenty-two billion, twelve million, two hundred twenty-two thousand, one hundred one".