22012011202217 has 2 divisors, whose sum is σ = 22012011202218. Its totient is φ = 22012011202216.

The previous prime is 22012011202211. The next prime is 22012011202241. The reversal of 22012011202217 is 71220211021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17180121401881 + 4831889800336 = 4144891^2 + 2198156^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012011202217 - 2³² = 22007716234921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22012011202192 and 22012011202201.

It is not a weakly prime, because it can be changed into another prime (22012011202211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006005601108 + 11006005601109.

It is an arithmetic number, because the mean of its divisors is an integer number (11006005601109).

Almost surely, 2^{22012011202217} is an apocalyptic number.

It is an amenable number.

22012011202217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012011202217 is an equidigital number, since it uses as much as digits as its factorization.

22012011202217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 22012011202217 its reverse (71220211021022), we get a palindrome (93232222223239).

The spelling of 22012011202217 in words is "twenty-two trillion, twelve billion, eleven million, two hundred two thousand, two hundred seventeen".