12020001109 has 2 divisors, whose sum is σ = 12020001110. Its totient is φ = 12020001108.

The previous prime is 12020001073. The next prime is 12020001121. The reversal of 12020001109 is 90110002021.

12020001109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9950661009 + 2069340100 = 99753^2 + 45490^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020001109 - 2¹⁵ = 12019968341 is a prime.

It is a super-2 number, since 2×12020001109² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020001092 and 12020001101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020001199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010000554 + 6010000555.

It is an arithmetic number, because the mean of its divisors is an integer number (6010000555).

Almost surely, 2^12020001109 is an apocalyptic number.

It is an amenable number.

12020001109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020001109 is an equidigital number, since it uses as much as digits as its factorization.

12020001109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 12020001109 in words is "twelve billion, twenty million, one thousand, one hundred nine".