1121212319 has 8 divisors (see below), whose sum is σ = 1137625920. Its totient is φ = 1104854400.

The previous prime is 1121212277. The next prime is 1121212321. The reversal of 1121212319 is 9132121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121212319 - 2⁸ = 1121212063 is a prime.

It is a super-2 number, since 2×1121212319² = 2514234128554715522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121212294 and 1121212303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121212219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27539 + ... + 54779.

It is an arithmetic number, because the mean of its divisors is an integer number (142203240).

Almost surely, 2^1121212319 is an apocalyptic number.

1121212319 is a deficient number, since it is larger than the sum of its proper divisors (16413601).

1121212319 is an equidigital number, since it uses as much as digits as its factorization.

1121212319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27841.

The product of its digits is 216, while the sum is 23.

The square root of 1121212319 is about 33484.5086420572. The cubic root of 1121212319 is about 1038.8733852120.

The spelling of 1121212319 in words is "one billion, one hundred twenty-one million, two hundred twelve thousand, three hundred nineteen".