1223132313221 has 48 divisors (see below), whose sum is σ = 1529024555520. Its totient is φ = 957950323200.

The previous prime is 1223132313173. The next prime is 1223132313229.

1223132313221 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-1223132313221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223132313229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153829796 + ... + 153837746.

It is an arithmetic number, because the mean of its divisors is an integer number (31854678240).

Almost surely, 2^{1223132313221} is an apocalyptic number.

It is an amenable number.

1223132313221 is a deficient number, since it is larger than the sum of its proper divisors (305892242299).

1223132313221 is a wasteful number, since it uses less digits than its factorization.

1223132313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9286 (or 9273 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The spelling of 1223132313221 in words is "one trillion, two hundred twenty-three billion, one hundred thirty-two million, three hundred thirteen thousand, two hundred twenty-one".