200221000121000 has 128 divisors (see below), whose sum is σ = 471505589568000. Its totient is φ = 79578638092800.

The previous prime is 200221000120951. The next prime is 200221000121081. The reversal of 200221000121000 is 121000122002.

It is a happy number.

200221000121000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147179924 + ... + 148534076.

It is an arithmetic number, because the mean of its divisors is an integer number (3683637418500).

Almost surely, 2^{200221000121000} is an apocalyptic number.

200221000121000 is a gapful number since it is divisible by the number (20) 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 200221000121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235752794784000).

200221000121000 is an abundant number, since it is smaller than the sum of its proper divisors (271284589447000).

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

200221000121000 is a wasteful number, since it uses less digits than its factorization.

200221000121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355116 (or 1355102 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200221000121000 its reverse (121000122002), we get a palindrome (200342000243002).

The spelling of 200221000121000 in words is "two hundred trillion, two hundred twenty-one billion, one hundred twenty-one thousand".