121044636 has 36 divisors (see below), whose sum is σ = 311165400. Its totient is φ = 39663648.

The previous prime is 121044629. The next prime is 121044647. The reversal of 121044636 is 636440121.

121044636 is a `hidden beast` number, since 1 + 21 + 0 + 4 + 4 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26371 + ... + 30618.

Almost surely, 2^121044636 is an apocalyptic number.

It is an amenable number.

121044636 is an abundant number, since it is smaller than the sum of its proper divisors (190120764).

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

121044636 is a wasteful number, since it uses less digits than its factorization.

121044636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57058 (or 57053 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 121044636 is about 11002.0287220130. The cubic root of 121044636 is about 494.6695560101.

Adding to 121044636 its reverse (636440121), we get a palindrome (757484757).

The spelling of 121044636 in words is "one hundred twenty-one million, forty-four thousand, six hundred thirty-six".