1223120212 has 24 divisors (see below), whose sum is σ = 2263251200. Its totient is φ = 576766656.

The previous prime is 1223120203. The next prime is 1223120237. The reversal of 1223120212 is 2120213221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19137 + ... + 53032.

Almost surely, 2^1223120212 is an apocalyptic number.

It is an amenable number.

1223120212 is a deficient number, since it is larger than the sum of its proper divisors (1040130988).

1223120212 is a wasteful number, since it uses less digits than its factorization.

1223120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72415 (or 72413 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1223120212 is about 34973.1355757530. The cubic root of 1223120212 is about 1069.4398943546.

Adding to 1223120212 its reverse (2120213221), we get a palindrome (3343333433).

The spelling of 1223120212 in words is "one billion, two hundred twenty-three million, one hundred twenty thousand, two hundred twelve".