121233012 has 24 divisors (see below), whose sum is σ = 284318496. Its totient is φ = 40205088.

The previous prime is 121232987. The next prime is 121233019. The reversal of 121233012 is 210332121.

It is a junction number, because it is equal to n+sod(n) for n = 121232982 and 121233000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233019) by changing a digit.

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, 23278 + ... + 28005.

It is an arithmetic number, because the mean of its divisors is an integer number (11846604).

Almost surely, 2^121233012 is an apocalyptic number.

121233012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121233012 is an abundant number, since it is smaller than the sum of its proper divisors (163085484).

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

121233012 is a wasteful number, since it uses less digits than its factorization.

121233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51487 (or 51485 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121233012 is about 11010.5863604079. The cubic root of 121233012 is about 494.9260332291.

Adding to 121233012 its reverse (210332121), we get a palindrome (331565133).

The spelling of 121233012 in words is "one hundred twenty-one million, two hundred thirty-three thousand, twelve".