2100605201 has 2 divisors, whose sum is σ = 2100605202. Its totient is φ = 2100605200.

The previous prime is 2100605197. The next prime is 2100605237. The reversal of 2100605201 is 1025060012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2041684225 + 58920976 = 45185^2 + 7676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100605201 - 2² = 2100605197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100605201.

It is not a weakly prime, because it can be changed into another prime (2100605701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050302600 + 1050302601.

It is an arithmetic number, because the mean of its divisors is an integer number (1050302601).

Almost surely, 2^2100605201 is an apocalyptic number.

It is an amenable number.

2100605201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100605201 is an equidigital number, since it uses as much as digits as its factorization.

2100605201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2100605201 is about 45832.3597581447. The cubic root of 2100605201 is about 1280.7021702816.

Adding to 2100605201 its reverse (1025060012), we get a palindrome (3125665213).

The spelling of 2100605201 in words is "two billion, one hundred million, six hundred five thousand, two hundred one".