11185389122 has 8 divisors (see below), whose sum is σ = 17765029836. Its totient is φ = 5263712512.

The previous prime is 11185389113. The next prime is 11185389151. The reversal of 11185389122 is 22198358111.

It is a Cunningham number, because it is equal to 105761²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 11185389121 + 1 = 105761^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11185389122² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11185389122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164490983 + ... + 164491050.

Almost surely, 2^11185389122 is an apocalyptic number.

11185389122 is a deficient number, since it is larger than the sum of its proper divisors (6579640714).

11185389122 is a wasteful number, since it uses less digits than its factorization.

11185389122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328982052.

The product of its digits is 34560, while the sum is 41.

The spelling of 11185389122 in words is "eleven billion, one hundred eighty-five million, three hundred eighty-nine thousand, one hundred twenty-two".