2132219909 has 2 divisors, whose sum is σ = 2132219910. Its totient is φ = 2132219908.

The previous prime is 2132219879. The next prime is 2132219911. The reversal of 2132219909 is 9099122312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1620465025 + 511754884 = 40255^2 + 22622^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132219909 - 2¹⁶ = 2132154373 is a prime.

Together with 2132219911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132219009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066109954 + 1066109955.

It is an arithmetic number, because the mean of its divisors is an integer number (1066109955).

Almost surely, 2^2132219909 is an apocalyptic number.

It is an amenable number.

2132219909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132219909 is an equidigital number, since it uses as much as digits as its factorization.

2132219909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 2132219909 is about 46175.9667900955. The cubic root of 2132219909 is about 1287.0951822973.

The spelling of 2132219909 in words is "two billion, one hundred thirty-two million, two hundred nineteen thousand, nine hundred nine".