101111212110197 has 2 divisors, whose sum is σ = 101111212110198. Its totient is φ = 101111212110196.

The previous prime is 101111212110193. The next prime is 101111212110229. The reversal of 101111212110197 is 791011212111101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51190218610756 + 49920993499441 = 7154734^2 + 7065479^2 .

It is a cyclic number.

It is not a de Polignac number, because 101111212110197 - 2² = 101111212110193 is a prime.

It is a super-3 number, since 3×101111212110197³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111212110193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555606055098 + 50555606055099.

It is an arithmetic number, because the mean of its divisors is an integer number (50555606055099).

Almost surely, 2^{101111212110197} is an apocalyptic number.

It is an amenable number.

101111212110197 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111212110197 is an equidigital number, since it uses as much as digits as its factorization.

101111212110197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 29.

Adding to 101111212110197 its reverse (791011212111101), we get a palindrome (892122424221298).

The spelling of 101111212110197 in words is "one hundred one trillion, one hundred eleven billion, two hundred twelve million, one hundred ten thousand, one hundred ninety-seven".