220000122109 has 2 divisors, whose sum is σ = 220000122110. Its totient is φ = 220000122108.

The previous prime is 220000121927. The next prime is 220000122149. The reversal of 220000122109 is 901221000022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165992686084 + 54007436025 = 407422^2 + 232395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220000122109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220000122149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000061054 + 110000061055.

It is an arithmetic number, because the mean of its divisors is an integer number (110000061055).

Almost surely, 2^220000122109 is an apocalyptic number.

It is an amenable number.

220000122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000122109 is an equidigital number, since it uses as much as digits as its factorization.

220000122109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 220000122109 in words is "two hundred twenty billion, one hundred twenty-two thousand, one hundred nine".