121252050 has 72 divisors (see below), whose sum is σ = 327474576. Its totient is φ = 32164320.

The previous prime is 121252049. The next prime is 121252069. The reversal of 121252050 is 50252121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 101557 + ... + 102743.

It is an arithmetic number, because the mean of its divisors is an integer number (4548258).

Almost surely, 2^121252050 is an apocalyptic number.

121252050 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 121252050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163737288).

121252050 is an abundant number, since it is smaller than the sum of its proper divisors (206222526).

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

121252050 is a wasteful number, since it uses less digits than its factorization.

121252050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 121252050 is about 11011.4508580841. The cubic root of 121252050 is about 494.9519390130.

The spelling of 121252050 in words is "one hundred twenty-one million, two hundred fifty-two thousand, fifty".