121111804 has 36 divisors (see below), whose sum is σ = 239296792. Its totient is φ = 53555040.

The previous prime is 121111799. The next prime is 121111811. The reversal of 121111804 is 408111121.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 14527 + ... + 21289.

Almost surely, 2^121111804 is an apocalyptic number.

It is an amenable number.

121111804 is a deficient number, since it is larger than the sum of its proper divisors (118184988).

121111804 is a wasteful number, since it uses less digits than its factorization.

121111804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826 (or 6813 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 121111804 is about 11005.0808266000. The cubic root of 121111804 is about 494.7610369216.

Adding to 121111804 its reverse (408111121), we get a palindrome (529222925).

The spelling of 121111804 in words is "one hundred twenty-one million, one hundred eleven thousand, eight hundred four".