22212079 has 2 divisors, whose sum is σ = 22212080. Its totient is φ = 22212078.

The previous prime is 22212077. The next prime is 22212097. The reversal of 22212079 is 97021222.

Together with next prime (22212097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22212079 - 2¹ = 22212077 is a prime.

Together with 22212077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106039 + 11106040.

It is an arithmetic number, because the mean of its divisors is an integer number (11106040).

Almost surely, 2^22212079 is an apocalyptic number.

22212079 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212079 is an equidigital number, since it uses as much as digits as its factorization.

22212079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22212079 is about 4712.9692339331. The cubic root of 22212079 is about 281.1014396326.

The spelling of 22212079 in words is "twenty-two million, two hundred twelve thousand, seventy-nine".