200121323002002 has 32 divisors (see below), whose sum is σ = 444716006908800. Its totient is φ = 66706814298384.

The previous prime is 200121323001973. The next prime is 200121323002031. The reversal of 200121323002002 is 200200323121002.

200121323002002 is a `hidden beast` number, since 20 + 0 + 1 + 213 + 230 + 0 + 200 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (200121323001973) and next prime (200121323002031).

It is a super-2 number, since 2×200121323002002² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4421124 + ... + 20488752.

It is an arithmetic number, because the mean of its divisors is an integer number (13897375215900).

Almost surely, 2^{200121323002002} is an apocalyptic number.

200121323002002 is an abundant number, since it is smaller than the sum of its proper divisors (244594683906798).

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

200121323002002 is a wasteful number, since it uses less digits than its factorization.

200121323002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16298287 (or 16298281 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 200121323002002 its reverse (200200323121002), we get a palindrome (400321646123004).

The spelling of 200121323002002 in words is "two hundred trillion, one hundred twenty-one billion, three hundred twenty-three million, two thousand, two".