121188230208 has 84 divisors (see below), whose sum is σ = 367797397500. Its totient is φ = 38019833856.

The previous prime is 121188230203. The next prime is 121188230221. The reversal of 121188230208 is 802032881121.

121188230208 is a `hidden beast` number, since 1 + 211 + 8 + 8 + 230 + 208 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83331523584 + 37856706624 = 288672^2 + 194568^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (121188230203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6178333 + ... + 6197916.

Almost surely, 2^121188230208 is an apocalyptic number.

121188230208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121188230208 is an abundant number, since it is smaller than the sum of its proper divisors (246609167292).

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

121188230208 is a wasteful number, since it uses less digits than its factorization.

121188230208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12376284 (or 12376271 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 121188230208 in words is "one hundred twenty-one billion, one hundred eighty-eight million, two hundred thirty thousand, two hundred eight".