1222616 has 16 divisors (see below), whose sum is σ = 2327640. Its totient is φ = 601920.

The previous prime is 1222603. The next prime is 1222633. The reversal of 1222616 is 6162221.

It is a happy number.

It is a congruent number.

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, 605 + ... + 1676.

2^1222616 is an apocalyptic number.

It is an amenable number.

1222616 is a deficient number, since it is larger than the sum of its proper divisors (1105024).

1222616 is a wasteful number, since it uses less digits than its factorization.

1222616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2350 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1222616 is about 1105.7196751437. The cubic root of 1222616 is about 106.9292920919.

Adding to 1222616 its reverse (6162221), we get a palindrome (7384837).

The spelling of 1222616 in words is "one million, two hundred twenty-two thousand, six hundred sixteen".