2220544769 has 2 divisors, whose sum is σ = 2220544770. Its totient is φ = 2220544768.

The previous prime is 2220544757. The next prime is 2220544771. The reversal of 2220544769 is 9674450222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2203833025 + 16711744 = 46945^2 + 4088^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220544769 - 2²⁰ = 2219496193 is a prime.

It is a super-2 number, since 2×2220544769² = 9861638142266526722, which contains 22 as substring.

Together with 2220544771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2220541769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110272384 + 1110272385.

It is an arithmetic number, because the mean of its divisors is an integer number (1110272385).

Almost surely, 2^2220544769 is an apocalyptic number.

It is an amenable number.

2220544769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220544769 is an equidigital number, since it uses as much as digits as its factorization.

2220544769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2220544769 is about 47122.6566420018. The cubic root of 2220544769 is about 1304.6274473691.

The spelling of 2220544769 in words is "two billion, two hundred twenty million, five hundred forty-four thousand, seven hundred sixty-nine".