22212120084617 has 2 divisors, whose sum is σ = 22212120084618. Its totient is φ = 22212120084616.

The previous prime is 22212120084613. The next prime is 22212120084619. The reversal of 22212120084617 is 71648002121222.

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., 22195678690441 + 16441394176 = 4711229^2 + 128224^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212120084617 - 2² = 22212120084613 is a prime.

Together with 22212120084619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22212120084611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106060042308 + 11106060042309.

It is an arithmetic number, because the mean of its divisors is an integer number (11106060042309).

Almost surely, 2^{22212120084617} is an apocalyptic number.

It is an amenable number.

22212120084617 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212120084617 is an equidigital number, since it uses as much as digits as its factorization.

22212120084617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 22212120084617 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty million, eighty-four thousand, six hundred seventeen".