121153412 has 12 divisors (see below), whose sum is σ = 212500176. Its totient is φ = 60439080.

The previous prime is 121153399. The next prime is 121153421. The reversal of 121153412 is 214351121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32414 + ... + 35957.

It is an arithmetic number, because the mean of its divisors is an integer number (17708348).

Almost surely, 2^121153412 is an apocalyptic number.

It is an amenable number.

121153412 is a deficient number, since it is larger than the sum of its proper divisors (91346764).

121153412 is a wasteful number, since it uses less digits than its factorization.

121153412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68818 (or 68816 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 121153412 is about 11006.9710638304. The cubic root of 121153412 is about 494.8176888734.

It can be divided in two parts, 121153 and 412, that multiplied together give a triangular number (49915036 = T₉₉₉₁).

The spelling of 121153412 in words is "one hundred twenty-one million, one hundred fifty-three thousand, four hundred twelve".