11122161571 has 2 divisors, whose sum is σ = 11122161572. Its totient is φ = 11122161570.

The previous prime is 11122161551. The next prime is 11122161593. The reversal of 11122161571 is 17516122111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11122161571 - 2¹³ = 11122153379 is a prime.

It is a super-2 number, since 2×11122161571² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11122161551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561080785 + 5561080786.

It is an arithmetic number, because the mean of its divisors is an integer number (5561080786).

Almost surely, 2^11122161571 is an apocalyptic number.

11122161571 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122161571 is an equidigital number, since it uses as much as digits as its factorization.

11122161571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 28.

Adding to 11122161571 its reverse (17516122111), we get a palindrome (28638283682).

The spelling of 11122161571 in words is "eleven billion, one hundred twenty-two million, one hundred sixty-one thousand, five hundred seventy-one".