222422777779 has 2 divisors, whose sum is σ = 222422777780. Its totient is φ = 222422777778.

The previous prime is 222422777771. The next prime is 222422777831. The reversal of 222422777779 is 977777224222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222422777779 - 2³ = 222422777771 is a prime.

It is not a weakly prime, because it can be changed into another prime (222422777771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111211388889 + 111211388890.

It is an arithmetic number, because the mean of its divisors is an integer number (111211388890).

Almost surely, 2^222422777779 is an apocalyptic number.

222422777779 is a deficient number, since it is larger than the sum of its proper divisors (1).

222422777779 is an equidigital number, since it uses as much as digits as its factorization.

222422777779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19361664, while the sum is 58.

The spelling of 222422777779 in words is "two hundred twenty-two billion, four hundred twenty-two million, seven hundred seventy-seven thousand, seven hundred seventy-nine".