200044121 has 2 divisors, whose sum is σ = 200044122. Its totient is φ = 200044120.

The previous prime is 200044109. The next prime is 200044129. The reversal of 200044121 is 121440002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196000000 + 4044121 = 14000^2 + 2011^2 .

It is a cyclic number.

It is not a de Polignac number, because 200044121 - 2²² = 195849817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200044096 and 200044105.

It is not a weakly prime, because it can be changed into another prime (200044129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100022060 + 100022061.

It is an arithmetic number, because the mean of its divisors is an integer number (100022061).

Almost surely, 2^200044121 is an apocalyptic number.

It is an amenable number.

200044121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200044121 is an equidigital number, since it uses as much as digits as its factorization.

200044121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 200044121 is about 14143.6954506239. The cubic root of 200044121 is about 584.8465480096.

Adding to 200044121 its reverse (121440002), we get a palindrome (321484123).

The spelling of 200044121 in words is "two hundred million, forty-four thousand, one hundred twenty-one".