1212117 has 8 divisors (see below), whose sum is σ = 1711296. Its totient is φ = 760512.

The previous prime is 1212103. The next prime is 1212119. The reversal of 1212117 is 7112121.

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

It is not a de Polignac number, because 1212117 - 2⁶ = 1212053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212096 and 1212105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11833 + ... + 11934.

It is an arithmetic number, because the mean of its divisors is an integer number (213912).

2^1212117 is an apocalyptic number.

1212117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1212117 is a deficient number, since it is larger than the sum of its proper divisors (499179).

1212117 is a wasteful number, since it uses less digits than its factorization.

1212117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23787.

The product of its digits is 28, while the sum is 15.

The square root of 1212117 is about 1100.9618522002. The cubic root of 1212117 is about 106.6223329217.

Adding to 1212117 its reverse (7112121), we get a palindrome (8324238).

The spelling of 1212117 in words is "one million, two hundred twelve thousand, one hundred seventeen".