200121212010053 has 2 divisors, whose sum is σ = 200121212010054. Its totient is φ = 200121212010052.

The previous prime is 200121212010029. The next prime is 200121212010127. The reversal of 200121212010053 is 350010212121002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184023278608324 + 16097933401729 = 13565518^2 + 4012223^2 .

It is a cyclic number.

It is not a de Polignac number, because 200121212010053 - 2¹⁰ = 200121212009029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121212070053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060606005026 + 100060606005027.

It is an arithmetic number, because the mean of its divisors is an integer number (100060606005027).

Almost surely, 2^{200121212010053} is an apocalyptic number.

It is an amenable number.

200121212010053 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121212010053 is an equidigital number, since it uses as much as digits as its factorization.

200121212010053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 200121212010053 its reverse (350010212121002), we get a palindrome (550131424131055).

The spelling of 200121212010053 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twelve million, ten thousand, fifty-three".