22101121117 has 2 divisors, whose sum is σ = 22101121118. Its totient is φ = 22101121116.

The previous prime is 22101121087. The next prime is 22101121127. The reversal of 22101121117 is 71112110122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22100092921 + 1028196 = 148661^2 + 1014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22101121117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22101121094 and 22101121103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101121127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050560558 + 11050560559.

It is an arithmetic number, because the mean of its divisors is an integer number (11050560559).

Almost surely, 2^22101121117 is an apocalyptic number.

It is an amenable number.

22101121117 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101121117 is an equidigital number, since it uses as much as digits as its factorization.

22101121117 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 19.

Adding to 22101121117 its reverse (71112110122), we get a palindrome (93213231239).

The spelling of 22101121117 in words is "twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred seventeen".