11122021601 has 2 divisors, whose sum is σ = 11122021602. Its totient is φ = 11122021600.

The previous prime is 11122021597. The next prime is 11122021607. The reversal of 11122021601 is 10612022111.

11122021601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10916070400 + 205951201 = 104480^2 + 14351^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122021601 - 2² = 11122021597 is a prime.

It is a super-2 number, since 2×11122021601² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11122021601.

It is not a weakly prime, because it can be changed into another prime (11122021607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561010800 + 5561010801.

It is an arithmetic number, because the mean of its divisors is an integer number (5561010801).

Almost surely, 2^11122021601 is an apocalyptic number.

It is an amenable number.

11122021601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122021601 is an equidigital number, since it uses as much as digits as its factorization.

11122021601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11122021601 its reverse (10612022111), we get a palindrome (21734043712).

The spelling of 11122021601 in words is "eleven billion, one hundred twenty-two million, twenty-one thousand, six hundred one".