200021120122002 has 32 divisors (see below), whose sum is σ = 400217273948160. Its totient is φ = 66644535691920.

The previous prime is 200021120121983. The next prime is 200021120122049. The reversal of 200021120122002 is 200221021120002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763427899 + ... + 763689857.

It is an arithmetic number, because the mean of its divisors is an integer number (12506789810880).

Almost surely, 2^{200021120122002} is an apocalyptic number.

200021120122002 is an abundant number, since it is smaller than the sum of its proper divisors (200196153826158).

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

200021120122002 is a wasteful number, since it uses less digits than its factorization.

200021120122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317158.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200021120122002 its reverse (200221021120002), we get a palindrome (400242141242004).

It can be divided in two parts, 200021 and 120122002, that multiplied together give a palindrome (24026922962042).

The spelling of 200021120122002 in words is "two hundred trillion, twenty-one billion, one hundred twenty million, one hundred twenty-two thousand, two".