10121112222197 has 2 divisors, whose sum is σ = 10121112222198. Its totient is φ = 10121112222196.

The previous prime is 10121112222191. The next prime is 10121112222223. The reversal of 10121112222197 is 79122221112101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5584591354276 + 4536520867921 = 2363174^2 + 2129911^2 .

It is an emirp because it is prime and its reverse (79122221112101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10121112222197 - 2¹⁸ = 10121111960053 is a prime.

It is a super-2 number, since 2×10121112222197² (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 (10121112222191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060556111098 + 5060556111099.

It is an arithmetic number, because the mean of its divisors is an integer number (5060556111099).

Almost surely, 2^{10121112222197} is an apocalyptic number.

It is an amenable number.

10121112222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121112222197 is an equidigital number, since it uses as much as digits as its factorization.

10121112222197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

Adding to 10121112222197 its reverse (79122221112101), we get a palindrome (89243333334298).

The spelling of 10121112222197 in words is "ten trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, one hundred ninety-seven".