12101022209 has 2 divisors, whose sum is σ = 12101022210. Its totient is φ = 12101022208.

The previous prime is 12101022191. The next prime is 12101022217. The reversal of 12101022209 is 90222010121.

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., 11603598400 + 497423809 = 107720^2 + 22303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101022209 is a prime.

It is a super-2 number, since 2×12101022209² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12101022509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050511104 + 6050511105.

It is an arithmetic number, because the mean of its divisors is an integer number (6050511105).

Almost surely, 2^12101022209 is an apocalyptic number.

It is an amenable number.

12101022209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101022209 is an equidigital number, since it uses as much as digits as its factorization.

12101022209 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 20.

The spelling of 12101022209 in words is "twelve billion, one hundred one million, twenty-two thousand, two hundred nine".