121501200 has 180 divisors, whose sum is σ = 415382640. Its totient is φ = 30274560.

The previous prime is 121501189. The next prime is 121501267. The reversal of 121501200 is 2105121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1664364 + ... + 1664436.

Almost surely, 2^121501200 is an apocalyptic number.

121501200 is a gapful number since it is divisible by the number (10) 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 121501200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207691320).

121501200 is an abundant number, since it is smaller than the sum of its proper divisors (293881440).

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

121501200 is a wasteful number, since it uses less digits than its factorization.

121501200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 121501200 is about 11022.7582754953. The cubic root of 121501200 is about 495.2907179102.

Adding to 121501200 its reverse (2105121), we get a palindrome (123606321).

The spelling of 121501200 in words is "one hundred twenty-one million, five hundred one thousand, two hundred".