12122102019901 has 2 divisors, whose sum is σ = 12122102019902. Its totient is φ = 12122102019900.

The previous prime is 12122102019847. The next prime is 12122102020009. The reversal of 12122102019901 is 10991020122121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6736755216676 + 5385346803225 = 2595526^2 + 2320635^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122102019901 - 2²⁹ = 12121565148989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122102016901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061051009950 + 6061051009951.

It is an arithmetic number, because the mean of its divisors is an integer number (6061051009951).

Almost surely, 2^{12122102019901} is an apocalyptic number.

It is an amenable number.

12122102019901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122102019901 is an equidigital number, since it uses as much as digits as its factorization.

12122102019901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 12122102019901 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, nineteen thousand, nine hundred one".