12201121021069 has 2 divisors, whose sum is σ = 12201121021070. Its totient is φ = 12201121021068.

The previous prime is 12201121021057. The next prime is 12201121021079. The reversal of 12201121021069 is 96012012110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7507528760169 + 4693592260900 = 2739987^2 + 2166470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201121021069 is a prime.

It is a super-2 number, since 2×12201121021069² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201121021049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100560510534 + 6100560510535.

It is an arithmetic number, because the mean of its divisors is an integer number (6100560510535).

Almost surely, 2^{12201121021069} is an apocalyptic number.

It is an amenable number.

12201121021069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201121021069 is an equidigital number, since it uses as much as digits as its factorization.

12201121021069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 12201121021069 in words is "twelve trillion, two hundred one billion, one hundred twenty-one million, twenty-one thousand, sixty-nine".