212013213197 has 2 divisors, whose sum is σ = 212013213198. Its totient is φ = 212013213196.

The previous prime is 212013213187. The next prime is 212013213227. The reversal of 212013213197 is 791312310212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125164533796 + 86848679401 = 353786^2 + 294701^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013213197 - 2¹⁸ = 212012951053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013213127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006606598 + 106006606599.

It is an arithmetic number, because the mean of its divisors is an integer number (106006606599).

Almost surely, 2^212013213197 is an apocalyptic number.

It is an amenable number.

212013213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013213197 is an equidigital number, since it uses as much as digits as its factorization.

212013213197 is an evil number, because the sum of its binary digits is even.

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

The spelling of 212013213197 in words is "two hundred twelve billion, thirteen million, two hundred thirteen thousand, one hundred ninety-seven".