220110109949 has 2 divisors, whose sum is σ = 220110109950. Its totient is φ = 220110109948.

The previous prime is 220110109931. The next prime is 220110110021. The reversal of 220110109949 is 949901011022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214594077049 + 5516032900 = 463243^2 + 74270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220110109949 is a prime.

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 (220110109909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055054974 + 110055054975.

It is an arithmetic number, because the mean of its divisors is an integer number (110055054975).

Almost surely, 2^220110109949 is an apocalyptic number.

It is an amenable number.

220110109949 is a deficient number, since it is larger than the sum of its proper divisors (1).

220110109949 is an equidigital number, since it uses as much as digits as its factorization.

220110109949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 220110109949 in words is "two hundred twenty billion, one hundred ten million, one hundred nine thousand, nine hundred forty-nine".