220110111011209 has 2 divisors, whose sum is σ = 220110111011210. Its totient is φ = 220110111011208.

The previous prime is 220110111011137. The next prime is 220110111011233. The reversal of 220110111011209 is 902110111011022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172875899539984 + 47234211471225 = 13148228^2 + 6872715^2 .

It is a cyclic number.

It is not a de Polignac number, because 220110111011209 - 2⁷ = 220110111011081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220110111011209.

It is not a weakly prime, because it can be changed into another prime (220110111011269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055055505604 + 110055055505605.

It is an arithmetic number, because the mean of its divisors is an integer number (110055055505605).

Almost surely, 2^{220110111011209} is an apocalyptic number.

It is an amenable number.

220110111011209 is a deficient number, since it is larger than the sum of its proper divisors (1).

220110111011209 is an equidigital number, since it uses as much as digits as its factorization.

220110111011209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 220110111011209 in words is "two hundred twenty trillion, one hundred ten billion, one hundred eleven million, eleven thousand, two hundred nine".