11122021117 has 2 divisors, whose sum is σ = 11122021118. Its totient is φ = 11122021116.

The previous prime is 11122021093. The next prime is 11122021181. The reversal of 11122021117 is 71112022111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10191710116 + 930311001 = 100954^2 + 30501^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122021117 - 2⁷ = 11122020989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11122021094 and 11122021103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122021717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561010558 + 5561010559.

It is an arithmetic number, because the mean of its divisors is an integer number (5561010559).

Almost surely, 2^11122021117 is an apocalyptic number.

It is an amenable number.

11122021117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122021117 is an equidigital number, since it uses as much as digits as its factorization.

11122021117 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 11122021117 its reverse (71112022111), we get a palindrome (82234043228).

The spelling of 11122021117 in words is "eleven billion, one hundred twenty-two million, twenty-one thousand, one hundred seventeen".