102212011122197 has 2 divisors, whose sum is σ = 102212011122198. Its totient is φ = 102212011122196.

The previous prime is 102212011122191. The next prime is 102212011122241. The reversal of 102212011122197 is 791221110212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70683853502161 + 31528157620036 = 8407369^2 + 5614994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102212011122197 is a prime.

It is a super-2 number, since 2×102212011122197² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212011122191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106005561098 + 51106005561099.

It is an arithmetic number, because the mean of its divisors is an integer number (51106005561099).

Almost surely, 2^{102212011122197} is an apocalyptic number.

It is an amenable number.

102212011122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212011122197 is an equidigital number, since it uses as much as digits as its factorization.

102212011122197 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 32.

Adding to 102212011122197 its reverse (791221110212201), we get a palindrome (893433121334398).

The spelling of 102212011122197 in words is "one hundred two trillion, two hundred twelve billion, eleven million, one hundred twenty-two thousand, one hundred ninety-seven".