11221042430 has 128 divisors (see below), whose sum is σ = 23281655040. Its totient is φ = 3862425600.

The previous prime is 11221042373. The next prime is 11221042433. The reversal of 11221042430 is 3424012211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221042433) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 22045016 + ... + 22045524.

It is an arithmetic number, because the mean of its divisors is an integer number (181887930).

Almost surely, 2^11221042430 is an apocalyptic number.

11221042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221042430 is an abundant number, since it is smaller than the sum of its proper divisors (12060612610).

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

11221042430 is a wasteful number, since it uses less digits than its factorization.

11221042430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11221042430 its reverse (3424012211), we get a palindrome (14645054641).

The spelling of 11221042430 in words is "eleven billion, two hundred twenty-one million, forty-two thousand, four hundred thirty".