200120121002101 has 32 divisors (see below), whose sum is σ = 223528698645120. Its totient is φ = 178048017561600.

The previous prime is 200120121002089. The next prime is 200120121002161. The reversal of 200120121002101 is 101200121021002.

It is a cyclic number.

It is not a de Polignac number, because 200120121002101 - 2⁵ = 200120121002069 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 (200120121002161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274692361 + ... + 275419921.

It is an arithmetic number, because the mean of its divisors is an integer number (6985271832660).

Almost surely, 2^{200120121002101} is an apocalyptic number.

It is an amenable number.

200120121002101 is a deficient number, since it is larger than the sum of its proper divisors (23408577643019).

200120121002101 is a wasteful number, since it uses less digits than its factorization.

200120121002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729445.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200120121002101 its reverse (101200121021002), we get a palindrome (301320242023103).

The spelling of 200120121002101 in words is "two hundred trillion, one hundred twenty billion, one hundred twenty-one million, two thousand, one hundred one".