11155122194 has 8 divisors (see below), whose sum is σ = 17309672460. Its totient is φ = 5385231376.

The previous prime is 11155122163. The next prime is 11155122197. The reversal of 11155122194 is 49122155111.

It can be written as a sum of positive squares in 2 ways, for example, as 11127507169 + 27615025 = 105487^2 + 5255^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11155122194.

It is not an unprimeable number, because it can be changed into a prime (11155122197) 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, 96164789 + ... + 96164904.

Almost surely, 2^11155122194 is an apocalyptic number.

11155122194 is a deficient number, since it is larger than the sum of its proper divisors (6154550266).

11155122194 is a wasteful number, since it uses less digits than its factorization.

11155122194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192329724.

The product of its digits is 3600, while the sum is 32.

The spelling of 11155122194 in words is "eleven billion, one hundred fifty-five million, one hundred twenty-two thousand, one hundred ninety-four".