11040221412 has 36 divisors (see below), whose sum is σ = 30444248016. Its totient is φ = 3345521520.

The previous prime is 11040221411. The next prime is 11040221417. The reversal of 11040221412 is 21412204011.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11040221411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13939278 + ... + 13940069.

It is an arithmetic number, because the mean of its divisors is an integer number (845673556).

Almost surely, 2^11040221412 is an apocalyptic number.

11040221412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11040221412 is an abundant number, since it is smaller than the sum of its proper divisors (19404026604).

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

11040221412 is a wasteful number, since it uses less digits than its factorization.

11040221412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27879368 (or 27879363 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11040221412 its reverse (21412204011), we get a palindrome (32452425423).

The spelling of 11040221412 in words is "eleven billion, forty million, two hundred twenty-one thousand, four hundred twelve".