1221033002223 has 64 divisors (see below), whose sum is σ = 1812301185024. Its totient is φ = 727320000000.

The previous prime is 1221033002201. The next prime is 1221033002237. The reversal of 1221033002223 is 3222003301221.

It is a happy number.

It is not a de Polignac number, because 1221033002223 - 2⁶ = 1221033002159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1221033002223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221033002263) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 257003098 + ... + 257007848.

It is an arithmetic number, because the mean of its divisors is an integer number (28317206016).

Almost surely, 2^{1221033002223} is an apocalyptic number.

1221033002223 is a deficient number, since it is larger than the sum of its proper divisors (591268182801).

1221033002223 is a wasteful number, since it uses less digits than its factorization.

1221033002223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1221033002223 its reverse (3222003301221), we get a palindrome (4443036303444).

The spelling of 1221033002223 in words is "one trillion, two hundred twenty-one billion, thirty-three million, two thousand, two hundred twenty-three".