121114554000 has 320 divisors, whose sum is σ = 430212107520. Its totient is φ = 29068800000.

The previous prime is 121114553981. The next prime is 121114554017. The reversal of 121114554000 is 455411121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6656916 + ... + 6675084.

It is an arithmetic number, because the mean of its divisors is an integer number (1344412836).

Almost surely, 2^121114554000 is an apocalyptic number.

121114554000 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 121114554000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215106053760).

121114554000 is an abundant number, since it is smaller than the sum of its proper divisors (309097553520).

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

121114554000 is a wasteful number, since it uses less digits than its factorization.

121114554000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18307 (or 18291 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 121114554000 its reverse (455411121), we get a palindrome (121569965121).

The spelling of 121114554000 in words is "one hundred twenty-one billion, one hundred fourteen million, five hundred fifty-four thousand".