2022221779 has 2 divisors, whose sum is σ = 2022221780. Its totient is φ = 2022221778.

The previous prime is 2022221713. The next prime is 2022221807. The reversal of 2022221779 is 9771222202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2022221779 - 2¹⁵ = 2022189011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2022222779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011110889 + 1011110890.

It is an arithmetic number, because the mean of its divisors is an integer number (1011110890).

Almost surely, 2^2022221779 is an apocalyptic number.

2022221779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022221779 is an equidigital number, since it uses as much as digits as its factorization.

2022221779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2022221779 is about 44969.1202827007. The cubic root of 2022221779 is about 1264.5701547989.

The spelling of 2022221779 in words is "two billion, twenty-two million, two hundred twenty-one thousand, seven hundred seventy-nine".