10611222889 has 4 divisors (see below), whose sum is σ = 10682439300. Its totient is φ = 10540006480.

The previous prime is 10611222829. The next prime is 10611222907. The reversal of 10611222889 is 98822211601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1786499289 + 8824723600 = 42267^2 + 93940^2 .

It is a cyclic number.

It is not a de Polignac number, because 10611222889 - 2⁷ = 10611222761 is a prime.

It is a super-2 number, since 2×10611222889² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10611222829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35607982 + ... + 35608279.

It is an arithmetic number, because the mean of its divisors is an integer number (2670609825).

Almost surely, 2^10611222889 is an apocalyptic number.

It is an amenable number.

10611222889 is a deficient number, since it is larger than the sum of its proper divisors (71216411).

10611222889 is an equidigital number, since it uses as much as digits as its factorization.

10611222889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71216410.

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 10611222889 in words is "ten billion, six hundred eleven million, two hundred twenty-two thousand, eight hundred eighty-nine".