1212208 has 20 divisors (see below), whose sum is σ = 2365920. Its totient is φ = 601664.

The previous prime is 1212199. The next prime is 1212221. The reversal of 1212208 is 8022121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1212191 and 1212200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666 + ... + 3982.

It is an arithmetic number, because the mean of its divisors is an integer number (118296).

2^1212208 is an apocalyptic number.

It is an amenable number.

1212208 is a deficient number, since it is larger than the sum of its proper divisors (1153712).

1212208 is a wasteful number, since it uses less digits than its factorization.

1212208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1212208 is about 1101.0031789237. The cubic root of 1212208 is about 106.6250010880.

Adding to 1212208 its reverse (8022121), we get a palindrome (9234329).

The spelling of 1212208 in words is "one million, two hundred twelve thousand, two hundred eight".