121321002222000 has 960 divisors, whose sum is σ = 499058604705024. Its totient is φ = 26888653209600.

The previous prime is 121321002221977. The next prime is 121321002222127. The reversal of 121321002222000 is 222200123121.

121321002222000 is a `hidden beast` number, since 1 + 213 + 210 + 0 + 22 + 220 + 0 + 0 = 666.

121321002222000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1365921592 + ... + 1366010408.

Almost surely, 2^{121321002222000} is an apocalyptic number.

121321002222000 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 121321002222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249529302352512).

121321002222000 is an abundant number, since it is smaller than the sum of its proper divisors (377737602483024).

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

121321002222000 is a wasteful number, since it uses less digits than its factorization.

121321002222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89183 (or 89164 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121321002222000 its reverse (222200123121), we get a palindrome (121543202345121).

The spelling of 121321002222000 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two million, two hundred twenty-two thousand".