200202122121121 has 16 divisors (see below), whose sum is σ = 203974034646400. Its totient is φ = 196458125086080.

The previous prime is 200202122121101. The next prime is 200202122121151. The reversal of 200202122121121 is 121121221202002.

200202122121121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200202122121121 - 2¹⁷ = 200202121990049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200202122121101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319324411 + ... + 319950751.

It is an arithmetic number, because the mean of its divisors is an integer number (12748377165400).

Almost surely, 2^{200202122121121} is an apocalyptic number.

It is an amenable number.

200202122121121 is a deficient number, since it is larger than the sum of its proper divisors (3771912525279).

200202122121121 is a wasteful number, since it uses less digits than its factorization.

200202122121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648616.

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

Adding to 200202122121121 its reverse (121121221202002), we get a palindrome (321323343323123).

The spelling of 200202122121121 in words is "two hundred trillion, two hundred two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".