121152012 has 24 divisors (see below), whose sum is σ = 283371312. Its totient is φ = 40286400.

The previous prime is 121151993. The next prime is 121152019. The reversal of 121152012 is 210251121.

It is a junction number, because it is equal to n+sod(n) for n = 121151982 and 121152000.

It is not an unprimeable number, because it can be changed into a prime (121152019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6939 + ... + 17042.

It is an arithmetic number, because the mean of its divisors is an integer number (11807138).

Almost surely, 2^121152012 is an apocalyptic number.

121152012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121152012 is an abundant number, since it is smaller than the sum of its proper divisors (162219300).

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

121152012 is a wasteful number, since it uses less digits than its factorization.

121152012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24409 (or 24407 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 121152012 is about 11006.9074675860. The cubic root of 121152012 is about 494.8157828948.

The spelling of 121152012 in words is "one hundred twenty-one million, one hundred fifty-two thousand, twelve".