200121223130001 has 64 divisors (see below), whose sum is σ = 310521208262400. Its totient is φ = 128798888823360.

The previous prime is 200121223129991. The next prime is 200121223130057. The reversal of 200121223130001 is 100031322121002.

200121223130001 is a `hidden beast` number, since 20 + 0 + 121 + 223 + 1 + 300 + 0 + 1 = 666.

It is not a de Polignac number, because 200121223130001 - 2⁶ = 200121223129937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200121223130071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566888590 + ... + 567241496.

It is an arithmetic number, because the mean of its divisors is an integer number (4851893879100).

Almost surely, 2^{200121223130001} is an apocalyptic number.

It is an amenable number.

200121223130001 is a deficient number, since it is larger than the sum of its proper divisors (110399985132399).

200121223130001 is an frugal number, since it uses more digits than its factorization.

200121223130001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361898 (or 361880 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 200121223130001 its reverse (100031322121002), we get a palindrome (300152545251003).

The spelling of 200121223130001 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-three million, one hundred thirty thousand, one".