10202211212209 has 2 divisors, whose sum is σ = 10202211212210. Its totient is φ = 10202211212208.

The previous prime is 10202211212173. The next prime is 10202211212231. The reversal of 10202211212209 is 90221211220201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6912692640000 + 3289518572209 = 2629200^2 + 1813703^2 .

It is an emirp because it is prime and its reverse (90221211220201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10202211212209 - 2¹⁷ = 10202211081137 is a prime.

It is a super-2 number, since 2×10202211212209² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10202211212269) 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, 5101105606104 + 5101105606105.

It is an arithmetic number, because the mean of its divisors is an integer number (5101105606105).

Almost surely, 2^{10202211212209} is an apocalyptic number.

It is an amenable number.

10202211212209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202211212209 is an equidigital number, since it uses as much as digits as its factorization.

10202211212209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 10202211212209 in words is "ten trillion, two hundred two billion, two hundred eleven million, two hundred twelve thousand, two hundred nine".