221100200212109 has 2 divisors, whose sum is σ = 221100200212110. Its totient is φ = 221100200212108.

The previous prime is 221100200212097. The next prime is 221100200212121. The reversal of 221100200212109 is 901212002001122.

It is a balanced prime because it is at equal distance from previous prime (221100200212097) and next prime (221100200212121).

It can be written as a sum of positive squares in only one way, i.e., 195884517015625 + 25215683196484 = 13995875^2 + 5021522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221100200212109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221100200212169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550100106054 + 110550100106055.

It is an arithmetic number, because the mean of its divisors is an integer number (110550100106055).

Almost surely, 2^{221100200212109} is an apocalyptic number.

It is an amenable number.

221100200212109 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100200212109 is an equidigital number, since it uses as much as digits as its factorization.

221100200212109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 221100200212109 in words is "two hundred twenty-one trillion, one hundred billion, two hundred million, two hundred twelve thousand, one hundred nine".