200011011121121 has 8 divisors (see below), whose sum is σ = 200387491832040. Its totient is φ = 199634812739712.

The previous prime is 200011011120971. The next prime is 200011011121151. The reversal of 200011011121121 is 121121110110002.

It can be written as a sum of positive squares in 4 ways, for example, as 166315482224896 + 33695528896225 = 12896336^2 + 5804785^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200011011121121 - 2¹⁰ = 200011011120097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200011011121096 and 200011011121105.

It is not an unprimeable number, because it can be changed into a prime (200011011121151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69164156 + ... + 71997933.

It is an arithmetic number, because the mean of its divisors is an integer number (25048436479005).

Almost surely, 2^{200011011121121} is an apocalyptic number.

It is an amenable number.

200011011121121 is a deficient number, since it is larger than the sum of its proper divisors (376480710919).

200011011121121 is a wasteful number, since it uses less digits than its factorization.

200011011121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141164755.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 200011011121121 its reverse (121121110110002), we get a palindrome (321132121231123).

The spelling of 200011011121121 in words is "two hundred trillion, eleven billion, eleven million, one hundred twenty-one thousand, one hundred twenty-one".