12201020213929 has 2 divisors, whose sum is σ = 12201020213930. Its totient is φ = 12201020213928.

The previous prime is 12201020213909. The next prime is 12201020213947. The reversal of 12201020213929 is 92931202010221.

12201020213929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9372659790400 + 2828360423529 = 3061480^2 + 1681773^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201020213929 - 2⁷ = 12201020213801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201020213894 and 12201020213903.

It is not a weakly prime, because it can be changed into another prime (12201020213909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100510106964 + 6100510106965.

It is an arithmetic number, because the mean of its divisors is an integer number (6100510106965).

Almost surely, 2^{12201020213929} is an apocalyptic number.

It is an amenable number.

12201020213929 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201020213929 is an equidigital number, since it uses as much as digits as its factorization.

12201020213929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 12201020213929 in words is "twelve trillion, two hundred one billion, twenty million, two hundred thirteen thousand, nine hundred twenty-nine".