1223021211223 has 8 divisors (see below), whose sum is σ = 1398916075392. Its totient is φ = 1047420734136.

The previous prime is 1223021211163. The next prime is 1223021211259. The reversal of 1223021211223 is 3221121203221.

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

It is not a de Polignac number, because 1223021211223 - 2²⁵ = 1222987656791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223021211194 and 1223021211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223021211263) 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, 73587865 + ... + 73604482.

It is an arithmetic number, because the mean of its divisors is an integer number (174864509424).

Almost surely, 2^{1223021211223} is an apocalyptic number.

1223021211223 is a deficient number, since it is larger than the sum of its proper divisors (175894864169).

1223021211223 is a wasteful number, since it uses less digits than its factorization.

1223021211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147193541.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1223021211223 its reverse (3221121203221), we get a palindrome (4444142414444).

The spelling of 1223021211223 in words is "one trillion, two hundred twenty-three billion, twenty-one million, two hundred eleven thousand, two hundred twenty-three".