11122170551 has 8 divisors (see below), whose sum is σ = 11268206400. Its totient is φ = 10976266080.

The previous prime is 11122170529. The next prime is 11122170629. The reversal of 11122170551 is 15507122111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11122170551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11122170551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122170251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143765 + ... + 207153.

It is an arithmetic number, because the mean of its divisors is an integer number (1408525800).

Almost surely, 2^11122170551 is an apocalyptic number.

11122170551 is a deficient number, since it is larger than the sum of its proper divisors (146035849).

11122170551 is an equidigital number, since it uses as much as digits as its factorization.

11122170551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65689.

The product of its (nonzero) digits is 700, while the sum is 26.

Adding to 11122170551 its reverse (15507122111), we get a palindrome (26629292662).

The spelling of 11122170551 in words is "eleven billion, one hundred twenty-two million, one hundred seventy thousand, five hundred fifty-one".