212102201197 has 2 divisors, whose sum is σ = 212102201198. Its totient is φ = 212102201196.

The previous prime is 212102201191. The next prime is 212102201249. The reversal of 212102201197 is 791102201212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152514461961 + 59587739236 = 390531^2 + 244106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212102201197 is a prime.

It is a super-2 number, since 2×212102201197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212102201191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051100598 + 106051100599.

It is an arithmetic number, because the mean of its divisors is an integer number (106051100599).

Almost surely, 2^212102201197 is an apocalyptic number.

It is an amenable number.

212102201197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102201197 is an equidigital number, since it uses as much as digits as its factorization.

212102201197 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 212102201197 in words is "two hundred twelve billion, one hundred two million, two hundred one thousand, one hundred ninety-seven".