1223331212 has 12 divisors (see below), whose sum is σ = 2142877800. Its totient is φ = 611080416.

The previous prime is 1223331211. The next prime is 1223331229. The reversal of 1223331212 is 2121333221.

It is not an unprimeable number, because it can be changed into a prime (1223331211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141578 + ... + 149969.

It is an arithmetic number, because the mean of its divisors is an integer number (178573150).

Almost surely, 2^1223331212 is an apocalyptic number.

It is an amenable number.

1223331212 is a deficient number, since it is larger than the sum of its proper divisors (919546588).

1223331212 is a wasteful number, since it uses less digits than its factorization.

1223331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292600 (or 292598 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1223331212 is about 34976.1520467875. The cubic root of 1223331212 is about 1069.5013870411.

Adding to 1223331212 its reverse (2121333221), we get a palindrome (3344664433).

The spelling of 1223331212 in words is "one billion, two hundred twenty-three million, three hundred thirty-one thousand, two hundred twelve".