11102172 has 12 divisors (see below), whose sum is σ = 25905096. Its totient is φ = 3700720.

The previous prime is 11102167. The next prime is 11102177. The reversal of 11102172 is 27120111.

It is an interprime number because it is at equal distance from previous prime (11102167) and next prime (11102177).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102177) 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, 462579 + ... + 462602.

It is an arithmetic number, because the mean of its divisors is an integer number (2158758).

Almost surely, 2^11102172 is an apocalyptic number.

11102172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11102172 is an abundant number, since it is smaller than the sum of its proper divisors (14802924).

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

11102172 is a wasteful number, since it uses less digits than its factorization.

11102172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925188 (or 925186 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 11102172 is about 3331.9921968696. The cubic root of 11102172 is about 223.0844592838.

Adding to 11102172 its reverse (27120111), we get a palindrome (38222283).

The spelling of 11102172 in words is "eleven million, one hundred two thousand, one hundred seventy-two".