200212601021 has 2 divisors, whose sum is σ = 200212601022. Its totient is φ = 200212601020.

The previous prime is 200212601009. The next prime is 200212601051. The reversal of 200212601021 is 120106212002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175277032921 + 24935568100 = 418661^2 + 157910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200212601021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200212601051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100106300510 + 100106300511.

It is an arithmetic number, because the mean of its divisors is an integer number (100106300511).

Almost surely, 2^200212601021 is an apocalyptic number.

It is an amenable number.

200212601021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200212601021 is an equidigital number, since it uses as much as digits as its factorization.

200212601021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 200212601021 its reverse (120106212002), we get a palindrome (320318813023).

The spelling of 200212601021 in words is "two hundred billion, two hundred twelve million, six hundred one thousand, twenty-one".