2122210101217 has 2 divisors, whose sum is σ = 2122210101218. Its totient is φ = 2122210101216.

The previous prime is 2122210101161. The next prime is 2122210101233. The reversal of 2122210101217 is 7121010122212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1951284909456 + 170925191761 = 1396884^2 + 413431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122210101217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122210101257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061105050608 + 1061105050609.

It is an arithmetic number, because the mean of its divisors is an integer number (1061105050609).

Almost surely, 2^{2122210101217} is an apocalyptic number.

It is an amenable number.

2122210101217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122210101217 is an equidigital number, since it uses as much as digits as its factorization.

2122210101217 is an evil number, because the sum of its binary digits is even.

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

Adding to 2122210101217 its reverse (7121010122212), we get a palindrome (9243220223429).

The spelling of 2122210101217 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, one hundred one thousand, two hundred seventeen".