11100012 has 96 divisors (see below), whose sum is σ = 33191424. Its totient is φ = 2803200.

The previous prime is 11099999. The next prime is 11100013. The reversal of 11100012 is 21000111.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37738 + ... + 38030.

It is an arithmetic number, because the mean of its divisors is an integer number (345744).

Almost surely, 2^11100012 is an apocalyptic number.

11100012 is a gapful number since it is divisible by the number (12) 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 11100012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16595712).

11100012 is an abundant number, since it is smaller than the sum of its proper divisors (22091412).

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

11100012 is a wasteful number, since it uses less digits than its factorization.

11100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 11100012 is about 3331.6680506917. The cubic root of 11100012 is about 223.0699908331.

Adding to 11100012 its reverse (21000111), we get a palindrome (32100123).

Subtracting 11100012 from its reverse (21000111), we obtain a palindrome (9900099).

Multiplying 11100012 by its reverse (21000111), we get a palindrome (233101484101332).

The spelling of 11100012 in words is "eleven million, one hundred thousand, twelve".