12122110412501 has 2 divisors, whose sum is σ = 12122110412502. Its totient is φ = 12122110412500.

The previous prime is 12122110412459. The next prime is 12122110412557. The reversal of 12122110412501 is 10521401122121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11700682231876 + 421428180625 = 3420626^2 + 649175^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122110412501 - 2⁶ = 12122110412437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122110412801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061055206250 + 6061055206251.

It is an arithmetic number, because the mean of its divisors is an integer number (6061055206251).

Almost surely, 2^{12122110412501} is an apocalyptic number.

It is an amenable number.

12122110412501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122110412501 is an equidigital number, since it uses as much as digits as its factorization.

12122110412501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 12122110412501 its reverse (10521401122121), we get a palindrome (22643511534622).

The spelling of 12122110412501 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, four hundred twelve thousand, five hundred one".