1223045212 has 48 divisors (see below), whose sum is σ = 2359717920. Its totient is φ = 552241152.

The previous prime is 1223045207. The next prime is 1223045221. The reversal of 1223045212 is 2125403221.

It is a happy number.

It is a super-2 number, since 2×1223045212² = 2991679181192249888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180339 + ... + 186997.

It is an arithmetic number, because the mean of its divisors is an integer number (49160790).

Almost surely, 2^1223045212 is an apocalyptic number.

It is an amenable number.

1223045212 is a deficient number, since it is larger than the sum of its proper divisors (1136672708).

1223045212 is a wasteful number, since it uses less digits than its factorization.

1223045212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790 (or 6788 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1223045212 is about 34972.0633077318. The cubic root of 1223045212 is about 1069.4180350610.

Adding to 1223045212 its reverse (2125403221), we get a palindrome (3348448433).

The spelling of 1223045212 in words is "one billion, two hundred twenty-three million, forty-five thousand, two hundred twelve".