121063855 has 8 divisors (see below), whose sum is σ = 158483664. Its totient is φ = 88046400.

The previous prime is 121063829. The next prime is 121063861. The reversal of 121063855 is 558360121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121063855 - 2⁷ = 121063727 is a prime.

It is a super-2 number, since 2×121063855² = 29312913974922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1100526 + ... + 1100635.

It is an arithmetic number, because the mean of its divisors is an integer number (19810458).

Almost surely, 2^121063855 is an apocalyptic number.

121063855 is a deficient number, since it is larger than the sum of its proper divisors (37419809).

121063855 is a wasteful number, since it uses less digits than its factorization.

121063855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201177.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 121063855 is about 11002.9021171689. The cubic root of 121063855 is about 494.6957351987.

The spelling of 121063855 in words is "one hundred twenty-one million, sixty-three thousand, eight hundred fifty-five".