11221003249812 has 96 divisors (see below), whose sum is σ = 29719088663040. Its totient is φ = 3659689388160.

The previous prime is 11221003249759. The next prime is 11221003249829. The reversal of 11221003249812 is 21894230012211.

It is a happy number.

11221003249812 is a `hidden beast` number, since 1 + 1 + 22 + 100 + 32 + 498 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17248678 + ... + 17887394.

It is an arithmetic number, because the mean of its divisors is an integer number (309573840240).

Almost surely, 2^{11221003249812} is an apocalyptic number.

11221003249812 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 11221003249812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14859544331520).

11221003249812 is an abundant number, since it is smaller than the sum of its proper divisors (18498085413228).

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

11221003249812 is a wasteful number, since it uses less digits than its factorization.

11221003249812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642238 (or 642230 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 11221003249812 in words is "eleven trillion, two hundred twenty-one billion, three million, two hundred forty-nine thousand, eight hundred twelve".