12021112202129 has 2 divisors, whose sum is σ = 12021112202130. Its totient is φ = 12021112202128.

The previous prime is 12021112202087. The next prime is 12021112202131. The reversal of 12021112202129 is 92120221112021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6651937348225 + 5369174853904 = 2579135^2 + 2317148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021112202129 is a prime.

Together with 12021112202131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021112202098 and 12021112202107.

It is not a weakly prime, because it can be changed into another prime (12021112202329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010556101064 + 6010556101065.

It is an arithmetic number, because the mean of its divisors is an integer number (6010556101065).

Almost surely, 2^{12021112202129} is an apocalyptic number.

It is an amenable number.

12021112202129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021112202129 is an equidigital number, since it uses as much as digits as its factorization.

12021112202129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 12021112202129 in words is "twelve trillion, twenty-one billion, one hundred twelve million, two hundred two thousand, one hundred twenty-nine".