220770019 has 2 divisors, whose sum is σ = 220770020. Its totient is φ = 220770018.

The previous prime is 220770013. The next prime is 220770023. The reversal of 220770019 is 910077022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220770019 is a prime.

It is a super-2 number, since 2×220770019² = 97478802578520722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220770013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110385009 + 110385010.

It is an arithmetic number, because the mean of its divisors is an integer number (110385010).

Almost surely, 2^220770019 is an apocalyptic number.

220770019 is a deficient number, since it is larger than the sum of its proper divisors (1).

220770019 is an equidigital number, since it uses as much as digits as its factorization.

220770019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 220770019 is about 14858.3316358197. The cubic root of 220770019 is about 604.3845655210.

The spelling of 220770019 in words is "two hundred twenty million, seven hundred seventy thousand, nineteen".