210101022102197 has 2 divisors, whose sum is σ = 210101022102198. Its totient is φ = 210101022102196.

The previous prime is 210101022102151. The next prime is 210101022102329. The reversal of 210101022102197 is 791201220101012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177024249062116 + 33076773040081 = 13305046^2 + 5751241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210101022102197 is a prime.

It is a super-2 number, since 2×210101022102197² (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 (210101022182197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050511051098 + 105050511051099.

It is an arithmetic number, because the mean of its divisors is an integer number (105050511051099).

Almost surely, 2^{210101022102197} is an apocalyptic number.

It is an amenable number.

210101022102197 is a deficient number, since it is larger than the sum of its proper divisors (1).

210101022102197 is an equidigital number, since it uses as much as digits as its factorization.

210101022102197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 210101022102197 in words is "two hundred ten trillion, one hundred one billion, twenty-two million, one hundred two thousand, one hundred ninety-seven".