12201001919 has 2 divisors, whose sum is σ = 12201001920. Its totient is φ = 12201001918.

The previous prime is 12201001907. The next prime is 12201001921. The reversal of 12201001919 is 91910010221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12201001919 - 2⁴ = 12201001903 is a prime.

It is a super-2 number, since 2×12201001919² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12201001921, 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 (12201001619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100500959 + 6100500960.

It is an arithmetic number, because the mean of its divisors is an integer number (6100500960).

Almost surely, 2^12201001919 is an apocalyptic number.

12201001919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201001919 is an equidigital number, since it uses as much as digits as its factorization.

12201001919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 12201001919 in words is "twelve billion, two hundred one million, one thousand, nine hundred nineteen".