1212138119 has 2 divisors, whose sum is σ = 1212138120. Its totient is φ = 1212138118.

The previous prime is 1212138077. The next prime is 1212138127. The reversal of 1212138119 is 9118312121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212138119 - 2⁸ = 1212137863 is a prime.

It is a super-2 number, since 2×1212138119² = 2938557639065716322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212138091 and 1212138100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212138149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606069059 + 606069060.

It is an arithmetic number, because the mean of its divisors is an integer number (606069060).

Almost surely, 2^1212138119 is an apocalyptic number.

1212138119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212138119 is an equidigital number, since it uses as much as digits as its factorization.

1212138119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 29.

The square root of 1212138119 is about 34815.7739968538. The cubic root of 1212138119 is about 1066.2295215340.

The spelling of 1212138119 in words is "one billion, two hundred twelve million, one hundred thirty-eight thousand, one hundred nineteen".