11221100412 has 12 divisors (see below), whose sum is σ = 26182567656. Its totient is φ = 3740366800.

The previous prime is 11221100369. The next prime is 11221100431. The reversal of 11221100412 is 21400112211.

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

It is a junction number, because it is equal to n+sod(n) for n = 11221100391 and 11221100400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467545839 + ... + 467545862.

It is an arithmetic number, because the mean of its divisors is an integer number (2181880638).

Almost surely, 2^11221100412 is an apocalyptic number.

11221100412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221100412 is an abundant number, since it is smaller than the sum of its proper divisors (14961467244).

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

11221100412 is a wasteful number, since it uses less digits than its factorization.

11221100412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935091708 (or 935091706 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221100412 its reverse (21400112211), we get a palindrome (32621212623).

The spelling of 11221100412 in words is "eleven billion, two hundred twenty-one million, one hundred thousand, four hundred twelve".