22022121211217 has 2 divisors, whose sum is σ = 22022121211218. Its totient is φ = 22022121211216.

The previous prime is 22022121211187. The next prime is 22022121211273. The reversal of 22022121211217 is 71211212122022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12843651110416 + 9178470100801 = 3583804^2 + 3029599^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022121211217 - 2²⁰ = 22022120162641 is a prime.

It is not a weakly prime, because it can be changed into another prime (22022121211817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011060605608 + 11011060605609.

It is an arithmetic number, because the mean of its divisors is an integer number (11011060605609).

Almost surely, 2^{22022121211217} is an apocalyptic number.

It is an amenable number.

22022121211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022121211217 is an equidigital number, since it uses as much as digits as its factorization.

22022121211217 is an evil number, because the sum of its binary digits is even.

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

Adding to 22022121211217 its reverse (71211212122022), we get a palindrome (93233333333239).

The spelling of 22022121211217 in words is "twenty-two trillion, twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, two hundred seventeen".