121111012232 has 32 divisors (see below), whose sum is σ = 270807235200. Its totient is φ = 49647992064.

The previous prime is 121111012223. The next prime is 121111012241. The reversal of 121111012232 is 232210111121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121111012223) and next prime (121111012241).

It is a self number, because there is not a number n which added to its sum of digits gives 121111012232.

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 7 ways as a sum of consecutive naturals, for example, 47013857 + ... + 47016432.

It is an arithmetic number, because the mean of its divisors is an integer number (8462726100).

Almost surely, 2^121111012232 is an apocalyptic number.

It is an amenable number.

121111012232 is an abundant number, since it is smaller than the sum of its proper divisors (149696222968).

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

121111012232 is a wasteful number, since it uses less digits than its factorization.

121111012232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94030325 (or 94030321 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121111012232 its reverse (232210111121), we get a palindrome (353321123353).

The spelling of 121111012232 in words is "one hundred twenty-one billion, one hundred eleven million, twelve thousand, two hundred thirty-two".