200121220012229 has 2 divisors, whose sum is σ = 200121220012230. Its totient is φ = 200121220012228.

The previous prime is 200121220012213. The next prime is 200121220012279. The reversal of 200121220012229 is 922210022121002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199741745532004 + 379474480225 = 14133002^2 + 616015^2 .

It is a cyclic number.

It is not a de Polignac number, because 200121220012229 - 2⁴ = 200121220012213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200121220012198 and 200121220012207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121220012279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060610006114 + 100060610006115.

It is an arithmetic number, because the mean of its divisors is an integer number (100060610006115).

Almost surely, 2^{200121220012229} is an apocalyptic number.

It is an amenable number.

200121220012229 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121220012229 is an equidigital number, since it uses as much as digits as its factorization.

200121220012229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 200121220012229 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred twenty-nine".