200121011201 has 2 divisors, whose sum is σ = 200121011202. Its totient is φ = 200121011200.

The previous prime is 200121011197. The next prime is 200121011227. The reversal of 200121011201 is 102110121002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141583628176 + 58537383025 = 376276^2 + 241945^2 .

It is a cyclic number.

It is not a de Polignac number, because 200121011201 - 2² = 200121011197 is a prime.

It is a super-2 number, since 2×200121011201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200121011501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060505600 + 100060505601.

It is an arithmetic number, because the mean of its divisors is an integer number (100060505601).

Almost surely, 2^200121011201 is an apocalyptic number.

It is an amenable number.

200121011201 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121011201 is an equidigital number, since it uses as much as digits as its factorization.

200121011201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 200121011201 its reverse (102110121002), we get a palindrome (302231132203).

The spelling of 200121011201 in words is "two hundred billion, one hundred twenty-one million, eleven thousand, two hundred one".