22021010117 has 2 divisors, whose sum is σ = 22021010118. Its totient is φ = 22021010116.

The previous prime is 22021010111. The next prime is 22021010119. The reversal of 22021010117 is 71101012022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16882844356 + 5138165761 = 129934^2 + 71681^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021010117 - 2⁴ = 22021010101 is a prime.

Together with 22021010119, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021010095 and 22021010104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021010111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010505058 + 11010505059.

It is an arithmetic number, because the mean of its divisors is an integer number (11010505059).

Almost surely, 2^22021010117 is an apocalyptic number.

It is an amenable number.

22021010117 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021010117 is an equidigital number, since it uses as much as digits as its factorization.

22021010117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 22021010117 its reverse (71101012022), we get a palindrome (93122022139).

The spelling of 22021010117 in words is "twenty-two billion, twenty-one million, ten thousand, one hundred seventeen".