2220455189 has 2 divisors, whose sum is σ = 2220455190. Its totient is φ = 2220455188.

The previous prime is 2220455183. The next prime is 2220455231. The reversal of 2220455189 is 9815540222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2212103089 + 8352100 = 47033^2 + 2890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220455189 - 2⁸ = 2220454933 is a prime.

It is a super-3 number, since 3×2220455189³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220455183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110227594 + 1110227595.

It is an arithmetic number, because the mean of its divisors is an integer number (1110227595).

Almost surely, 2^2220455189 is an apocalyptic number.

It is an amenable number.

2220455189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220455189 is an equidigital number, since it uses as much as digits as its factorization.

2220455189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2220455189 is about 47121.7061342223. The cubic root of 2220455189 is about 1304.6099036114.

The spelling of 2220455189 in words is "two billion, two hundred twenty million, four hundred fifty-five thousand, one hundred eighty-nine".