212213103197 has 4 divisors (see below), whose sum is σ = 212289800256. Its totient is φ = 212136406140.

The previous prime is 212213103143. The next prime is 212213103229. The reversal of 212213103197 is 791301312212.

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 212213103197 - 2¹⁶ = 212213037661 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 (212213109197) 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, 38344379 + ... + 38349912.

It is an arithmetic number, because the mean of its divisors is an integer number (53072450064).

Almost surely, 2^212213103197 is an apocalyptic number.

It is an amenable number.

212213103197 is a deficient number, since it is larger than the sum of its proper divisors (76697059).

212213103197 is an equidigital number, since it uses as much as digits as its factorization.

212213103197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76697058.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 212213103197 in words is "two hundred twelve billion, two hundred thirteen million, one hundred three thousand, one hundred ninety-seven".