12201012221197 has 2 divisors, whose sum is σ = 12201012221198. Its totient is φ = 12201012221196.

The previous prime is 12201012221081. The next prime is 12201012221243. The reversal of 12201012221197 is 79112221010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12190530352036 + 10481869161 = 3491494^2 + 102381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201012221197 is a prime.

It is a super-2 number, since 2×12201012221197² (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 (12201012221597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100506110598 + 6100506110599.

It is an arithmetic number, because the mean of its divisors is an integer number (6100506110599).

Almost surely, 2^{12201012221197} is an apocalyptic number.

It is an amenable number.

12201012221197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201012221197 is an equidigital number, since it uses as much as digits as its factorization.

12201012221197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 12201012221197 in words is "twelve trillion, two hundred one billion, twelve million, two hundred twenty-one thousand, one hundred ninety-seven".