121051545150000 has 480 divisors, whose sum is σ = 397262680186176. Its totient is φ = 31756608000000.

The previous prime is 121051545149993. The next prime is 121051545150023. The reversal of 121051545150000 is 51545150121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 121051545150000.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2378524554 + ... + 2378575446.

Almost surely, 2^{121051545150000} is an apocalyptic number.

121051545150000 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 121051545150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198631340093088).

121051545150000 is an abundant number, since it is smaller than the sum of its proper divisors (276211135036176).

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

121051545150000 is a wasteful number, since it uses less digits than its factorization.

121051545150000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51187 (or 51161 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 121051545150000 in words is "one hundred twenty-one trillion, fifty-one billion, five hundred forty-five million, one hundred fifty thousand".