12227779 has 2 divisors, whose sum is σ = 12227780. Its totient is φ = 12227778.

The previous prime is 12227753. The next prime is 12227783. The reversal of 12227779 is 97772221.

12227779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12227779 - 2¹³ = 12219587 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (12225779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113889 + 6113890.

It is an arithmetic number, because the mean of its divisors is an integer number (6113890).

Almost surely, 2^12227779 is an apocalyptic number.

12227779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12227779 is an equidigital number, since it uses as much as digits as its factorization.

12227779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 37.

The square root of 12227779 is about 3496.8241305505. The cubic root of 12227779 is about 230.3823445170.

The spelling of 12227779 in words is "twelve million, two hundred twenty-seven thousand, seven hundred seventy-nine".