121057002 has 48 divisors (see below), whose sum is σ = 288100800. Its totient is φ = 36432000.

The previous prime is 121056989. The next prime is 121057009. The reversal of 121057002 is 200750121.

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

It is not an unprimeable number, because it can be changed into a prime (121057009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27874 + ... + 31922.

It is an arithmetic number, because the mean of its divisors is an integer number (6002100).

Almost surely, 2^121057002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121057002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144050400).

121057002 is an abundant number, since it is smaller than the sum of its proper divisors (167043798).

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

121057002 is a wasteful number, since it uses less digits than its factorization.

121057002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219 (or 4216 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 121057002 is about 11002.5906949227. The cubic root of 121057002 is about 494.6864006927.

The spelling of 121057002 in words is "one hundred twenty-one million, fifty-seven thousand, two".