121229376 has 56 divisors (see below), whose sum is σ = 325306944. Its totient is φ = 39836160.

The previous prime is 121229369. The next prime is 121229393. The reversal of 121229376 is 673922121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9186 + ... + 18078.

Almost surely, 2^121229376 is an apocalyptic number.

121229376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121229376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162653472).

121229376 is an abundant number, since it is smaller than the sum of its proper divisors (204077568).

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

121229376 is an equidigital number, since it uses as much as digits as its factorization.

121229376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8979 (or 8969 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 121229376 is about 11010.4212453475. The cubic root of 121229376 is about 494.9210852669.

The spelling of 121229376 in words is "one hundred twenty-one million, two hundred twenty-nine thousand, three hundred seventy-six".