1223000221 has 8 divisors (see below), whose sum is σ = 1234233344. Its totient is φ = 1211792400.

The previous prime is 1223000201. The next prime is 1223000279. The reversal of 1223000221 is 1220003221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223000221 - 2²⁹ = 686129309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223000201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 98671 + ... + 110371.

It is an arithmetic number, because the mean of its divisors is an integer number (154279168).

Almost surely, 2^1223000221 is an apocalyptic number.

It is an amenable number.

1223000221 is a deficient number, since it is larger than the sum of its proper divisors (11233123).

1223000221 is a wasteful number, since it uses less digits than its factorization.

1223000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12651.

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

The square root of 1223000221 is about 34971.4200598146. The cubic root of 1223000221 is about 1069.4049216791.

Adding to 1223000221 its reverse (1220003221), we get a palindrome (2443003442).

It can be divided in two parts, 1223000 and 221, that added together give a palindrome (1223221).

The spelling of 1223000221 in words is "one billion, two hundred twenty-three million, two hundred twenty-one", and thus it is an aban number.