11221102170 has 24 divisors (see below), whose sum is σ = 29174865876. Its totient is φ = 2992293888.

The previous prime is 11221102141. The next prime is 11221102171. The reversal of 11221102170 is 7120112211.

It can be written as a sum of positive squares in 2 ways, for example, as 10619920809 + 601181361 = 103053^2 + 24519^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11221102171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62339367 + ... + 62339546.

Almost surely, 2^11221102170 is an apocalyptic number.

11221102170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221102170 is an abundant number, since it is smaller than the sum of its proper divisors (17953763706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221102170 is a wasteful number, since it uses less digits than its factorization.

11221102170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124678926 (or 124678923 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

Adding to 11221102170 its reverse (7120112211), we get a palindrome (18341214381).

The spelling of 11221102170 in words is "eleven billion, two hundred twenty-one million, one hundred two thousand, one hundred seventy".