10211010220109 has 2 divisors, whose sum is σ = 10211010220110. Its totient is φ = 10211010220108.

The previous prime is 10211010220009. The next prime is 10211010220129. The reversal of 10211010220109 is 90102201011201.

It is an a-pointer prime, because the next prime (10211010220129) can be obtained adding 10211010220109 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8030819176900 + 2180191043209 = 2833870^2 + 1476547^2 .

It is a cyclic number.

It is not a de Polignac number, because 10211010220109 - 2⁸ = 10211010219853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10211010220129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105505110054 + 5105505110055.

It is an arithmetic number, because the mean of its divisors is an integer number (5105505110055).

Almost surely, 2^{10211010220109} is an apocalyptic number.

It is an amenable number.

10211010220109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211010220109 is an equidigital number, since it uses as much as digits as its factorization.

10211010220109 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 20.

The spelling of 10211010220109 in words is "ten trillion, two hundred eleven billion, ten million, two hundred twenty thousand, one hundred nine".