212213144279 has 2 divisors, whose sum is σ = 212213144280. Its totient is φ = 212213144278.

The previous prime is 212213144177. The next prime is 212213144287. The reversal of 212213144279 is 972441312212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212213144279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212213144779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106572139 + 106106572140.

It is an arithmetic number, because the mean of its divisors is an integer number (106106572140).

Almost surely, 2^212213144279 is an apocalyptic number.

212213144279 is a deficient number, since it is larger than the sum of its proper divisors (1).

212213144279 is an equidigital number, since it uses as much as digits as its factorization.

212213144279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The spelling of 212213144279 in words is "two hundred twelve billion, two hundred thirteen million, one hundred forty-four thousand, two hundred seventy-nine".