212369302197 has 20 divisors (see below), whose sum is σ = 341646343500. Its totient is φ = 130688800704.

The previous prime is 212369302193. The next prime is 212369302267. The reversal of 212369302197 is 791203963212.

212369302197 is a `hidden beast` number, since 21 + 236 + 9 + 302 + 1 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97818192081 + 114551110116 = 312759^2 + 338454^2 .

It is not a de Polignac number, because 212369302197 - 2² = 212369302193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212369302193) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100839072 + ... + 100841177.

It is an arithmetic number, because the mean of its divisors is an integer number (17082317175).

Almost surely, 2^212369302197 is an apocalyptic number.

212369302197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

212369302197 is a deficient number, since it is larger than the sum of its proper divisors (129277041303).

212369302197 is a wasteful number, since it uses less digits than its factorization.

212369302197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201680274 (or 201680265 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 212369302197 in words is "two hundred twelve billion, three hundred sixty-nine million, three hundred two thousand, one hundred ninety-seven".