200001121201002 has 128 divisors (see below), whose sum is σ = 446852163870720. Its totient is φ = 59168790720000.

The previous prime is 200001121200983. The next prime is 200001121201043. The reversal of 200001121201002 is 200102121100002.

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, 400503723 + ... + 401002785.

It is an arithmetic number, because the mean of its divisors is an integer number (3491032530240).

Almost surely, 2^{200001121201002} is an apocalyptic number.

200001121201002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 200001121201002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223426081935360).

200001121201002 is an abundant number, since it is smaller than the sum of its proper divisors (246851042669718).

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

200001121201002 is a wasteful number, since it uses less digits than its factorization.

200001121201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500020.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200001121201002 its reverse (200102121100002), we get a palindrome (400103242301004).

The spelling of 200001121201002 in words is "two hundred trillion, one billion, one hundred twenty-one million, two hundred one thousand, two".