2011210122217 has 2 divisors, whose sum is σ = 2011210122218. Its totient is φ = 2011210122216.

The previous prime is 2011210122193. The next prime is 2011210122239. The reversal of 2011210122217 is 7122210121102.

It is an a-pointer prime, because the next prime (2011210122239) can be obtained adding 2011210122217 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1076563955776 + 934646166441 = 1037576^2 + 966771^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011210122217 - 2³⁹ = 1461454308329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011210129217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005605061108 + 1005605061109.

It is an arithmetic number, because the mean of its divisors is an integer number (1005605061109).

Almost surely, 2^{2011210122217} is an apocalyptic number.

It is an amenable number.

2011210122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011210122217 is an equidigital number, since it uses as much as digits as its factorization.

2011210122217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 2011210122217 its reverse (7122210121102), we get a palindrome (9133420243319).

The spelling of 2011210122217 in words is "two trillion, eleven billion, two hundred ten million, one hundred twenty-two thousand, two hundred seventeen".