1223212606 has 32 divisors (see below), whose sum is σ = 2308584960. Its totient is φ = 472197600.

The previous prime is 1223212541. The next prime is 1223212621. The reversal of 1223212606 is 6062123221.

It is a super-2 number, since 2×1223212606² = 2992498158954622472, 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19650 + ... + 53221.

It is an arithmetic number, because the mean of its divisors is an integer number (72143280).

Almost surely, 2^1223212606 is an apocalyptic number.

1223212606 is a deficient number, since it is larger than the sum of its proper divisors (1085372354).

1223212606 is a wasteful number, since it uses less digits than its factorization.

1223212606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73000.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1223212606 is about 34974.4564789791. The cubic root of 1223212606 is about 1069.4668220272.

Adding to 1223212606 its reverse (6062123221), we get a palindrome (7285335827).

The spelling of 1223212606 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, six hundred six".