1220223000221 has 8 divisors (see below), whose sum is σ = 1243352721600. Its totient is φ = 1197302597920.

The previous prime is 1220223000203. The next prime is 1220223000263. The reversal of 1220223000221 is 1220003220221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220223000221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220223000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220223020221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52318001 + ... + 52341318.

It is an arithmetic number, because the mean of its divisors is an integer number (155419090200).

Almost surely, 2^{1220223000221} is an apocalyptic number.

It is an amenable number.

1220223000221 is a deficient number, since it is larger than the sum of its proper divisors (23129721379).

1220223000221 is a wasteful number, since it uses less digits than its factorization.

1220223000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104659539.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1220223000221 its reverse (1220003220221), we get a palindrome (2440226220442).

The spelling of 1220223000221 in words is "one trillion, two hundred twenty billion, two hundred twenty-three million, two hundred twenty-one", and thus it is an aban number.