200121112122202 has 4 divisors (see below), whose sum is σ = 300181668183306. Its totient is φ = 100060556061100.

The previous prime is 200121112122181. The next prime is 200121112122317. The reversal of 200121112122202 is 202221211121002.

200121112122202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 138451204707841 + 61669907414361 = 11766529^2 + 7853019^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 200121112122202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50030278030549 + ... + 50030278030552.

Almost surely, 2^{200121112122202} is an apocalyptic number.

200121112122202 is a deficient number, since it is larger than the sum of its proper divisors (100060556061104).

200121112122202 is a wasteful number, since it uses less digits than its factorization.

200121112122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100060556061103.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200121112122202 its reverse (202221211121002), we get a palindrome (402342323243204).

The spelling of 200121112122202 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred two".