200120121101 has 4 divisors (see below), whose sum is σ = 200122257600. Its totient is φ = 200117984604.

The previous prime is 200120121079. The next prime is 200120121109. The reversal of 200120121101 is 101121021002.

200120121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200120121101 - 2¹⁰ = 200120120077 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 (200120121109) 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, 920981 + ... + 1117338.

It is an arithmetic number, because the mean of its divisors is an integer number (50030564400).

Almost surely, 2^200120121101 is an apocalyptic number.

It is an amenable number.

200120121101 is a deficient number, since it is larger than the sum of its proper divisors (2136499).

200120121101 is an equidigital number, since it uses as much as digits as its factorization.

200120121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136498.

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

Adding to 200120121101 its reverse (101121021002), we get a palindrome (301241142103).

The spelling of 200120121101 in words is "two hundred billion, one hundred twenty million, one hundred twenty-one thousand, one hundred one".