1216834119 has 12 divisors (see below), whose sum is σ = 1850157400. Its totient is φ = 768526704.

The previous prime is 1216834097. The next prime is 1216834123. The reversal of 1216834119 is 9114386121.

It is not a de Polignac number, because 1216834119 - 2²¹ = 1214736967 is a prime.

It is a super-2 number, since 2×1216834119² = 2961370546325012322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216834189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3557824 + ... + 3558165.

Almost surely, 2^1216834119 is an apocalyptic number.

1216834119 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1216834119 is a deficient number, since it is larger than the sum of its proper divisors (633323281).

1216834119 is a wasteful number, since it uses less digits than its factorization.

1216834119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116014 (or 7116011 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1216834119 is about 34883.1494994360. The cubic root of 1216834119 is about 1067.6046568337.

The spelling of 1216834119 in words is "one billion, two hundred sixteen million, eight hundred thirty-four thousand, one hundred nineteen".