12221201323000 has 32 divisors (see below), whose sum is σ = 28597611098160. Its totient is φ = 4888480528800.

The previous prime is 12221201322977. The next prime is 12221201323027. The reversal of 12221201323000 is 32310212221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6110599662 + ... + 6110601661.

Almost surely, 2^{12221201323000} is an apocalyptic number.

12221201323000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221201323000 is an abundant number, since it is smaller than the sum of its proper divisors (16376409775160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221201323000 is a wasteful number, since it uses less digits than its factorization.

12221201323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221201344 (or 12221201330 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12221201323000 its reverse (32310212221), we get a palindrome (12253511535221).

The spelling of 12221201323000 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, three hundred twenty-three thousand".