22002102021217 has 2 divisors, whose sum is σ = 22002102021218. Its totient is φ = 22002102021216.

The previous prime is 22002102021197. The next prime is 22002102021287. The reversal of 22002102021217 is 71212020120022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21481083683361 + 521018337856 = 4634769^2 + 721816^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002102021217 - 2²³ = 22002093632609 is a prime.

It is a super-2 number, since 2×22002102021217² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22002102021287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001051010608 + 11001051010609.

It is an arithmetic number, because the mean of its divisors is an integer number (11001051010609).

Almost surely, 2^{22002102021217} is an apocalyptic number.

It is an amenable number.

22002102021217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002102021217 is an equidigital number, since it uses as much as digits as its factorization.

22002102021217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 22002102021217 its reverse (71212020120022), we get a palindrome (93214122141239).

The spelling of 22002102021217 in words is "twenty-two trillion, two billion, one hundred two million, twenty-one thousand, two hundred seventeen".