121171650 has 48 divisors (see below), whose sum is σ = 301882464. Its totient is φ = 32164480.

The previous prime is 121171643. The next prime is 121171651. The reversal of 121171650 is 56171121.

It is a super-3 number, since 3×121171650³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121171650.

It is not an unprimeable number, because it can be changed into a prime (121171651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33217 + ... + 36683.

It is an arithmetic number, because the mean of its divisors is an integer number (6289218).

Almost surely, 2^121171650 is an apocalyptic number.

121171650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121171650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150941232).

121171650 is an abundant number, since it is smaller than the sum of its proper divisors (180710814).

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

121171650 is a wasteful number, since it uses less digits than its factorization.

121171650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715 (or 3710 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 121171650 is about 11007.7995076219. The cubic root of 121171650 is about 494.8425169875.

The spelling of 121171650 in words is "one hundred twenty-one million, one hundred seventy-one thousand, six hundred fifty".