2122121014217 has 2 divisors, whose sum is σ = 2122121014218. Its totient is φ = 2122121014216.

The previous prime is 2122121014187. The next prime is 2122121014253. The reversal of 2122121014217 is 7124101212212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1619559119161 + 502561895056 = 1272619^2 + 708916^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122121014217 - 2²² = 2122116819913 is a prime.

It is a super-2 number, since 2×2122121014217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2122121014417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061060507108 + 1061060507109.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060507109).

Almost surely, 2^{2122121014217} is an apocalyptic number.

It is an amenable number.

2122121014217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122121014217 is an equidigital number, since it uses as much as digits as its factorization.

2122121014217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 2122121014217 its reverse (7124101212212), we get a palindrome (9246222226429).

The spelling of 2122121014217 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, fourteen thousand, two hundred seventeen".