20000121002202 has 128 divisors (see below), whose sum is σ = 45161841973248. Its totient is φ = 5852160281600.

The previous prime is 20000121002179. The next prime is 20000121002233. The reversal of 20000121002202 is 20220012100002.

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 63 ways as a sum of consecutive naturals, for example, 105198193 + ... + 105388139.

It is an arithmetic number, because the mean of its divisors is an integer number (352826890416).

Almost surely, 2^{20000121002202} is an apocalyptic number.

20000121002202 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 20000121002202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22580920986624).

20000121002202 is an abundant number, since it is smaller than the sum of its proper divisors (25161720971046).

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

20000121002202 is a wasteful number, since it uses less digits than its factorization.

20000121002202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190404.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20000121002202 its reverse (20220012100002), we get a palindrome (40220133102204).

The spelling of 20000121002202 in words is "twenty trillion, one hundred twenty-one million, two thousand, two hundred two".