22120212122117 has 2 divisors, whose sum is σ = 22120212122118. Its totient is φ = 22120212122116.

The previous prime is 22120212122011. The next prime is 22120212122159. The reversal of 22120212122117 is 71122121202122.

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., 17722744405921 + 4397467716196 = 4209839^2 + 2097014^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120212122117 - 2²⁴ = 22120195344901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120212122167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060106061058 + 11060106061059.

It is an arithmetic number, because the mean of its divisors is an integer number (11060106061059).

Almost surely, 2^{22120212122117} is an apocalyptic number.

It is an amenable number.

22120212122117 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120212122117 is an equidigital number, since it uses as much as digits as its factorization.

22120212122117 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 22120212122117 its reverse (71122121202122), we get a palindrome (93242333324239).

The spelling of 22120212122117 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty-two thousand, one hundred seventeen".