12123210221332 has 48 divisors (see below), whose sum is σ = 24358579138432. Its totient is φ = 5171647979520.

The previous prime is 12123210221279. The next prime is 12123210221387. The reversal of 12123210221332 is 23312201232121.

It is a junction number, because it is equal to n+sod(n) for n = 12123210221297 and 12123210221306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13833403 + ... + 14683645.

Almost surely, 2^{12123210221332} is an apocalyptic number.

It is an amenable number.

12123210221332 is an abundant number, since it is smaller than the sum of its proper divisors (12235368917100).

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

12123210221332 is a wasteful number, since it uses less digits than its factorization.

12123210221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852608 (or 852606 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12123210221332 its reverse (23312201232121), we get a palindrome (35435411453453).

The spelling of 12123210221332 in words is "twelve trillion, one hundred twenty-three billion, two hundred ten million, two hundred twenty-one thousand, three hundred thirty-two".