121223311232 has 32 divisors (see below), whose sum is σ = 242713182000. Its totient is φ = 60307061760.

The previous prime is 121223311229. The next prime is 121223311243. The reversal of 121223311232 is 232113322121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 121223311198 and 121223311207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354069 + ... + 2405012.

Almost surely, 2^121223311232 is an apocalyptic number.

It is an amenable number.

121223311232 is an abundant number, since it is smaller than the sum of its proper divisors (121489870768).

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

121223311232 is an equidigital number, since it uses as much as digits as its factorization.

121223311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759294 (or 4759282 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 121223311232 its reverse (232113322121), we get a palindrome (353336633353).

The spelling of 121223311232 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred eleven thousand, two hundred thirty-two".