200202121121999 has 4 divisors (see below), whose sum is σ = 200202180056064. Its totient is φ = 200202062187936.

The previous prime is 200202121121993. The next prime is 200202121122019. The reversal of 200202121121999 is 999121121202002.

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

It is a cyclic number.

It is not a de Polignac number, because 200202121121999 - 2¹⁶ = 200202121056463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200202121121993) 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 3 ways as a sum of consecutive naturals, for example, 24038042 + ... + 31276695.

It is an arithmetic number, because the mean of its divisors is an integer number (50050545014016).

Almost surely, 2^{200202121121999} is an apocalyptic number.

200202121121999 is a deficient number, since it is larger than the sum of its proper divisors (58934065).

200202121121999 is an equidigital number, since it uses as much as digits as its factorization.

200202121121999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58934064.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 200202121121999 in words is "two hundred trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty-one thousand, nine hundred ninety-nine".