2110202009 has 2 divisors, whose sum is σ = 2110202010. Its totient is φ = 2110202008.

The previous prime is 2110201991. The next prime is 2110202033. The reversal of 2110202009 is 9002020112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2061160000 + 49042009 = 45400^2 + 7003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110202009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2110202069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055101004 + 1055101005.

It is an arithmetic number, because the mean of its divisors is an integer number (1055101005).

Almost surely, 2^2110202009 is an apocalyptic number.

It is an amenable number.

2110202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110202009 is an equidigital number, since it uses as much as digits as its factorization.

2110202009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2110202009 is about 45936.9351284998. The cubic root of 2110202009 is about 1282.6495429081.

It can be divided in two parts, 2 and 110202009, that added together give a palindrome (110202011).

The spelling of 2110202009 in words is "two billion, one hundred ten million, two hundred two thousand, nine".