121052554000 has 160 divisors (see below), whose sum is σ = 346056422400. Its totient is φ = 40072435200.

The previous prime is 121052553889. The next prime is 121052554033. The reversal of 121052554000 is 455250121.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 31 ways as a sum of consecutive naturals, for example, 256921 + ... + 555079.

It is an arithmetic number, because the mean of its divisors is an integer number (2162852640).

Almost surely, 2^121052554000 is an apocalyptic number.

121052554000 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 121052554000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173028211200).

121052554000 is an abundant number, since it is smaller than the sum of its proper divisors (225003868400).

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

121052554000 is a wasteful number, since it uses less digits than its factorization.

121052554000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298218 (or 298202 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 121052554000 in words is "one hundred twenty-one billion, fifty-two million, five hundred fifty-four thousand".