210122021000197 has 2 divisors, whose sum is σ = 210122021000198. Its totient is φ = 210122021000196.

The previous prime is 210122021000191. The next prime is 210122021000233. The reversal of 210122021000197 is 791000120221012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174614711642596 + 35507309357601 = 13214186^2 + 5958801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210122021000197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210122021000191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061010500098 + 105061010500099.

It is an arithmetic number, because the mean of its divisors is an integer number (105061010500099).

Almost surely, 2^{210122021000197} is an apocalyptic number.

It is an amenable number.

210122021000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122021000197 is an equidigital number, since it uses as much as digits as its factorization.

210122021000197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 210122021000197 in words is "two hundred ten trillion, one hundred twenty-two billion, twenty-one million, one hundred ninety-seven", and thus it is an aban number.