121221404332 has 12 divisors (see below), whose sum is σ = 242442808720. Its totient is φ = 51952030416.

The previous prime is 121221404329. The next prime is 121221404413. The reversal of 121221404332 is 233404122121.

121221404332 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 121221404297 and 121221404306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2164667907 + ... + 2164667962.

Almost surely, 2^121221404332 is an apocalyptic number.

It is an amenable number.

121221404332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121221404332 is a wasteful number, since it uses less digits than its factorization.

121221404332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329335880 (or 4329335878 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121221404332 its reverse (233404122121), we get a palindrome (354625526453).

The spelling of 121221404332 in words is "one hundred twenty-one billion, two hundred twenty-one million, four hundred four thousand, three hundred thirty-two".