1223013110221 has 12 divisors (see below), whose sum is σ = 1432110508320. Its totient is φ = 1041354581400.

The previous prime is 1223013110153. The next prime is 1223013110227. The reversal of 1223013110221 is 1220113103221.

It is not a de Polignac number, because 1223013110221 - 2²⁵ = 1222979555789 is a prime.

It is a super-2 number, since 2×1223013110221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223013110227) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 82639791 + ... + 82654588.

It is an arithmetic number, because the mean of its divisors is an integer number (119342542360).

Almost surely, 2^{1223013110221} is an apocalyptic number.

It is an amenable number.

1223013110221 is a deficient number, since it is larger than the sum of its proper divisors (209097398099).

1223013110221 is a wasteful number, since it uses less digits than its factorization.

1223013110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165294544 (or 165294537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1223013110221 its reverse (1220113103221), we get a palindrome (2443126213442).

The spelling of 1223013110221 in words is "one trillion, two hundred twenty-three billion, thirteen million, one hundred ten thousand, two hundred twenty-one".