12121122119 has 2 divisors, whose sum is σ = 12121122120. Its totient is φ = 12121122118.

The previous prime is 12121122103. The next prime is 12121122121. The reversal of 12121122119 is 91122112121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121122119 - 2⁴ = 12121122103 is a prime.

It is a super-2 number, since 2×12121122119² (a number of 21 digits) contains 22 as substring.

Together with 12121122121, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12121122094 and 12121122103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121122919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060561059 + 6060561060.

It is an arithmetic number, because the mean of its divisors is an integer number (6060561060).

Almost surely, 2^12121122119 is an apocalyptic number.

12121122119 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121122119 is an equidigital number, since it uses as much as digits as its factorization.

12121122119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 23.

The spelling of 12121122119 in words is "twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred nineteen".