121334121000 has 96 divisors (see below), whose sum is σ = 410109359400. Its totient is φ = 32355763200.

The previous prime is 121334120989. The next prime is 121334121001. The reversal of 121334121000 is 121433121.

121334121000 is a `hidden beast` number, since 121 + 33 + 412 + 100 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29841180516 + 91492940484 = 172746^2 + 302478^2 .

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 (121334121001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6731785 + ... + 6749784.

Almost surely, 2^121334121000 is an apocalyptic number.

121334121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121334121000 is an abundant number, since it is smaller than the sum of its proper divisors (288775238400).

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

121334121000 is a wasteful number, since it uses less digits than its factorization.

121334121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13481596 (or 13481579 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121334121000 its reverse (121433121), we get a palindrome (121455554121).

The spelling of 121334121000 in words is "one hundred twenty-one billion, three hundred thirty-four million, one hundred twenty-one thousand".