12101220001109 has 2 divisors, whose sum is σ = 12101220001110. Its totient is φ = 12101220001108.

The previous prime is 12101220001051. The next prime is 12101220001141. The reversal of 12101220001109 is 90110002210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10481263800484 + 1619956200625 = 3237478^2 + 1272775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101220001109 is a prime.

It is a super-2 number, since 2×12101220001109² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101220004109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050610000554 + 6050610000555.

It is an arithmetic number, because the mean of its divisors is an integer number (6050610000555).

Almost surely, 2^{12101220001109} is an apocalyptic number.

It is an amenable number.

12101220001109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101220001109 is an equidigital number, since it uses as much as digits as its factorization.

12101220001109 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 20.

The spelling of 12101220001109 in words is "twelve trillion, one hundred one billion, two hundred twenty million, one thousand, one hundred nine".