121055530 has 8 divisors (see below), whose sum is σ = 217899972. Its totient is φ = 48422208.

The previous prime is 121055513. The next prime is 121055531. The reversal of 121055530 is 35550121.

It can be written as a sum of positive squares in 2 ways, for example, as 120494529 + 561001 = 10977^2 + 749^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121055531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6052767 + ... + 6052786.

Almost surely, 2^121055530 is an apocalyptic number.

121055530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121055530 is a deficient number, since it is larger than the sum of its proper divisors (96844442).

121055530 is a wasteful number, since it uses less digits than its factorization.

121055530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12105560.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 121055530 is about 11002.5238013830. The cubic root of 121055530 is about 494.6843956281.

The spelling of 121055530 in words is "one hundred twenty-one million, fifty-five thousand, five hundred thirty".