200122010121109 has 4 divisors (see below), whose sum is σ = 200122046702604. Its totient is φ = 200121973539616.

The previous prime is 200122010121079. The next prime is 200122010121113. The reversal of 200122010121109 is 901121010221002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 141828449180625 + 58293560940484 = 11909175^2 + 7635022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200122010121109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200122010121109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122010121119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8246182 + ... + 21638935.

It is an arithmetic number, because the mean of its divisors is an integer number (50030511675651).

Almost surely, 2^{200122010121109} is an apocalyptic number.

It is an amenable number.

200122010121109 is a deficient number, since it is larger than the sum of its proper divisors (36581495).

200122010121109 is an equidigital number, since it uses as much as digits as its factorization.

200122010121109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36581494.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 200122010121109 in words is "two hundred trillion, one hundred twenty-two billion, ten million, one hundred twenty-one thousand, one hundred nine".