1320221179 has 2 divisors, whose sum is σ = 1320221180. Its totient is φ = 1320221178.

The previous prime is 1320221153. The next prime is 1320221209. The reversal of 1320221179 is 9711220231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320221179 - 2⁷ = 1320221051 is a prime.

It is a super-2 number, since 2×1320221179² = 3485967922960300082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1320221129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660110589 + 660110590.

It is an arithmetic number, because the mean of its divisors is an integer number (660110590).

Almost surely, 2^1320221179 is an apocalyptic number.

1320221179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320221179 is an equidigital number, since it uses as much as digits as its factorization.

1320221179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1320221179 is about 36334.8479974803. The cubic root of 1320221179 is about 1097.0225759551.

The spelling of 1320221179 in words is "one billion, three hundred twenty million, two hundred twenty-one thousand, one hundred seventy-nine".