200121301202109 has 16 divisors (see below), whose sum is σ = 305260799040000. Its totient is φ = 114237258876720.

The previous prime is 200121301202087. The next prime is 200121301202131. The reversal of 200121301202109 is 901202103121002.

It is an interprime number because it is at equal distance from previous prime (200121301202087) and next prime (200121301202131).

It is not a de Polignac number, because 200121301202109 - 2¹¹ = 200121301200061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121301202159) 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, 4907078359 + ... + 4907119140.

It is an arithmetic number, because the mean of its divisors is an integer number (19078799940000).

Almost surely, 2^{200121301202109} is an apocalyptic number.

It is an amenable number.

200121301202109 is a deficient number, since it is larger than the sum of its proper divisors (105139497837891).

200121301202109 is an equidigital number, since it uses as much as digits as its factorization.

200121301202109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9814198480.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 200121301202109 in words is "two hundred trillion, one hundred twenty-one billion, three hundred one million, two hundred two thousand, one hundred nine".