200120220002121 has 16 divisors (see below), whose sum is σ = 281952538920960. Its totient is φ = 125997540823440.

The previous prime is 200120220002083. The next prime is 200120220002147. The reversal of 200120220002121 is 121200022021002.

It is not a de Polignac number, because 200120220002121 - 2¹¹ = 200120220000073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200120220002121.

It is not an unprimeable number, because it can be changed into a prime (200120220002191) by changing a digit.

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, 18356279635 + ... + 18356290536.

It is an arithmetic number, because the mean of its divisors is an integer number (17622033682560).

Almost surely, 2^{200120220002121} is an apocalyptic number.

It is an amenable number.

200120220002121 is a deficient number, since it is larger than the sum of its proper divisors (81832318918839).

200120220002121 is a wasteful number, since it uses less digits than its factorization.

200120220002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36712570276.

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

Adding to 200120220002121 its reverse (121200022021002), we get a palindrome (321320242023123).

The spelling of 200120220002121 in words is "two hundred trillion, one hundred twenty billion, two hundred twenty million, two thousand, one hundred twenty-one".