2110021220009 has 2 divisors, whose sum is σ = 2110021220010. Its totient is φ = 2110021220008.

The previous prime is 2110021219997. The next prime is 2110021220029. The reversal of 2110021220009 is 9000221200112.

It is a happy number.

It is an a-pointer prime, because the next prime (2110021220029) can be obtained adding 2110021220009 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2048539537984 + 61481682025 = 1431272^2 + 247955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110021220009 - 2⁸ = 2110021219753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2110021220029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055010610004 + 1055010610005.

It is an arithmetic number, because the mean of its divisors is an integer number (1055010610005).

Almost surely, 2^{2110021220009} is an apocalyptic number.

It is an amenable number.

2110021220009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110021220009 is an equidigital number, since it uses as much as digits as its factorization.

2110021220009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 2110021220009 in words is "two trillion, one hundred ten billion, twenty-one million, two hundred twenty thousand, nine".