1223212 has 6 divisors (see below), whose sum is σ = 2140628. Its totient is φ = 611604.

The previous prime is 1223207. The next prime is 1223231. The reversal of 1223212 is 2123221.

It is a junction number, because it is equal to n+sod(n) for n = 1223192 and 1223201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152898 + ... + 152905.

2^1223212 is an apocalyptic number.

It is an amenable number.

1223212 is a deficient number, since it is larger than the sum of its proper divisors (917416).

1223212 is a wasteful number, since it uses less digits than its factorization.

1223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305807 (or 305805 counting only the distinct ones).

The product of its digits is 48, while the sum is 13.

The square root of 1223212 is about 1105.9891500372. The cubic root of 1223212 is about 106.9466645417.

Adding to 1223212 its reverse (2123221), we get a palindrome (3346433).

Subtracting 1223212 from its reverse (2123221), we obtain a palindrome (900009).

The spelling of 1223212 in words is "one million, two hundred twenty-three thousand, two hundred twelve".