11122500 has 60 divisors (see below), whose sum is σ = 32452112. Its totient is φ = 2964000.

The previous prime is 11122493. The next prime is 11122511. The reversal of 11122500 is 522111.

11122500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6759 + ... + 8241.

Almost surely, 2^11122500 is an apocalyptic number.

11122500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11122500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16226056).

11122500 is an abundant number, since it is smaller than the sum of its proper divisors (21329612).

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

11122500 is a wasteful number, since it uses less digits than its factorization.

11122500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 11122500 is about 3335.0412291305. The cubic root of 11122500 is about 223.2205316348.

Adding to 11122500 its reverse (522111), we get a palindrome (11644611).

The spelling of 11122500 in words is "eleven million, one hundred twenty-two thousand, five hundred".