1217228 has 12 divisors (see below), whose sum is σ = 2143680. Its totient is φ = 604752.

The previous prime is 1217219. The next prime is 1217233. The reversal of 1217228 is 8227121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (178640).

2^1217228 is an apocalyptic number.

It is an amenable number.

1217228 is a deficient number, since it is larger than the sum of its proper divisors (926452).

1217228 is a wasteful number, since it uses less digits than its factorization.

1217228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1934 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 1217228 is about 1103.2805626857. The cubic root of 1217228 is about 106.7719836550.

The spelling of 1217228 in words is "one million, two hundred seventeen thousand, two hundred twenty-eight".