12210212279 has 2 divisors, whose sum is σ = 12210212280. Its totient is φ = 12210212278.

The previous prime is 12210212249. The next prime is 12210212303. The reversal of 12210212279 is 97221201221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12210212279 - 2¹² = 12210208183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210212249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105106139 + 6105106140.

It is an arithmetic number, because the mean of its divisors is an integer number (6105106140).

Almost surely, 2^12210212279 is an apocalyptic number.

12210212279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210212279 is an equidigital number, since it uses as much as digits as its factorization.

12210212279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 12210212279 in words is "twelve billion, two hundred ten million, two hundred twelve thousand, two hundred seventy-nine".