122279 has 2 divisors, whose sum is σ = 122280. Its totient is φ = 122278.

The previous prime is 122273. The next prime is 122299. The reversal of 122279 is 972221.

It is a weak prime.

It is an emirp because it is prime and its reverse (972221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122279 - 2⁴ = 122263 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61139 + 61140.

It is an arithmetic number, because the mean of its divisors is an integer number (61140).

2¹²²²⁷⁹ is an apocalyptic number.

122279 is a deficient number, since it is larger than the sum of its proper divisors (1).

122279 is an equidigital number, since it uses as much as digits as its factorization.

122279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 122279 is about 349.6841431921. The cubic root of 122279 is about 49.6345352183.

The spelling of 122279 in words is "one hundred twenty-two thousand, two hundred seventy-nine".