121121422432 has 24 divisors (see below), whose sum is σ = 238506275952. Its totient is φ = 60548400000.

The previous prime is 121121422397. The next prime is 121121422453. The reversal of 121121422432 is 234224121121.

It is a junction number, because it is equal to n+sod(n) for n = 121121422397 and 121121422406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223819 + ... + 540682.

It is an arithmetic number, because the mean of its divisors is an integer number (9937761498).

Almost surely, 2^121121422432 is an apocalyptic number.

It is an amenable number.

121121422432 is a deficient number, since it is larger than the sum of its proper divisors (117384853520).

121121422432 is an equidigital number, since it uses as much as digits as its factorization.

121121422432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769462 (or 769454 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

Adding to 121121422432 its reverse (234224121121), we get a palindrome (355345543553).

The spelling of 121121422432 in words is "one hundred twenty-one billion, one hundred twenty-one million, four hundred twenty-two thousand, four hundred thirty-two".