121055530120 has 32 divisors (see below), whose sum is σ = 311285649600. Its totient is φ = 41504753088.

The previous prime is 121055530103. The next prime is 121055530121. The reversal of 121055530120 is 21035550121.

It is not an unprimeable number, because it can be changed into a prime (121055530121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216170310 + ... + 216170869.

It is an arithmetic number, because the mean of its divisors is an integer number (9727676550).

Almost surely, 2^121055530120 is an apocalyptic number.

121055530120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121055530120 is an abundant number, since it is smaller than the sum of its proper divisors (190230119480).

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

121055530120 is a wasteful number, since it uses less digits than its factorization.

121055530120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432341197 (or 432341193 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 121055530120 in words is "one hundred twenty-one billion, fifty-five million, five hundred thirty thousand, one hundred twenty".