200211001000121 has 4 divisors (see below), whose sum is σ = 200215842084132. Its totient is φ = 200206159916112.

The previous prime is 200211001000013. The next prime is 200211001000151. The reversal of 200211001000121 is 121000100112002.

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 48813627555625 + 151397373444496 = 6986675^2 + 12304364^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211001000121 - 2⁴⁶ = 129842256822457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200211001000151) 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, 2420479970 + ... + 2420562683.

It is an arithmetic number, because the mean of its divisors is an integer number (50053960521033).

Almost surely, 2^{200211001000121} is an apocalyptic number.

It is an amenable number.

200211001000121 is a deficient number, since it is larger than the sum of its proper divisors (4841084011).

200211001000121 is an equidigital number, since it uses as much as digits as its factorization.

200211001000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841084010.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200211001000121 its reverse (121000100112002), we get a palindrome (321211101112123).

The spelling of 200211001000121 in words is "two hundred trillion, two hundred eleven billion, one million, one hundred twenty-one", and thus it is an aban number.