232121211232 has 96 divisors (see below), whose sum is σ = 485896320000. Its totient is φ = 108777351168.

The previous prime is 232121211209. The next prime is 232121211247. The reversal of 232121211232 is 232112121232.

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, 223407769 + ... + 223408807.

It is an arithmetic number, because the mean of its divisors is an integer number (5061420000).

Almost surely, 2^232121211232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232121211232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242948160000).

232121211232 is an abundant number, since it is smaller than the sum of its proper divisors (253775108768).

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

232121211232 is a wasteful number, since it uses less digits than its factorization.

232121211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2380 counting only the distinct ones).

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

Adding to 232121211232 its reverse (232112121232), we get a palindrome (464233332464).

The spelling of 232121211232 in words is "two hundred thirty-two billion, one hundred twenty-one million, two hundred eleven thousand, two hundred thirty-two".