200010112021001 has 4 divisors (see below), whose sum is σ = 200172854180100. Its totient is φ = 199847369861904.

The previous prime is 200010112020973. The next prime is 200010112021019. The reversal of 200010112021001 is 100120211010002.

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 199206435630601 + 803676390400 = 14114051^2 + 896480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200010112021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200010112021061) 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, 81371077706 + ... + 81371080163.

It is an arithmetic number, because the mean of its divisors is an integer number (50043213545025).

Almost surely, 2^{200010112021001} is an apocalyptic number.

It is an amenable number.

200010112021001 is a deficient number, since it is larger than the sum of its proper divisors (162742159099).

200010112021001 is a wasteful number, since it uses less digits than its factorization.

200010112021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162742159098.

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

Adding to 200010112021001 its reverse (100120211010002), we get a palindrome (300130323031003).

The spelling of 200010112021001 in words is "two hundred trillion, ten billion, one hundred twelve million, twenty-one thousand, one".