210012197 has 4 divisors (see below), whose sum is σ = 216786816. Its totient is φ = 203237580.

The previous prime is 210012193. The next prime is 210012223. The reversal of 210012197 is 791210012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210012197 - 2² = 210012193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3387263 + ... + 3387324.

It is an arithmetic number, because the mean of its divisors is an integer number (54196704).

Almost surely, 2^210012197 is an apocalyptic number.

It is an amenable number.

210012197 is a deficient number, since it is larger than the sum of its proper divisors (6774619).

210012197 is an equidigital number, since it uses as much as digits as its factorization.

210012197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774618.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 210012197 is about 14491.7975765603. The cubic root of 210012197 is about 594.4037026751.

The spelling of 210012197 in words is "two hundred ten million, twelve thousand, one hundred ninety-seven".