121200213001229 has 2 divisors, whose sum is σ = 121200213001230. Its totient is φ = 121200213001228.

The previous prime is 121200213001193. The next prime is 121200213001249. The reversal of 121200213001229 is 922100312002121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120578956914025 + 621256087204 = 10980845^2 + 788198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200213001229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121200213001198 and 121200213001207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121200213001249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600106500614 + 60600106500615.

It is an arithmetic number, because the mean of its divisors is an integer number (60600106500615).

Almost surely, 2^{121200213001229} is an apocalyptic number.

It is an amenable number.

121200213001229 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200213001229 is an equidigital number, since it uses as much as digits as its factorization.

121200213001229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 121200213001229 in words is "one hundred twenty-one trillion, two hundred billion, two hundred thirteen million, one thousand, two hundred twenty-nine".