11221445532 has 24 divisors (see below), whose sum is σ = 28563679872. Its totient is φ = 3400438000.

The previous prime is 11221445497. The next prime is 11221445539. The reversal of 11221445532 is 23554412211.

It is a self number, because there is not a number n which added to its sum of digits gives 11221445532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221445539) 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 7 ways as a sum of consecutive naturals, for example, 42505344 + ... + 42505607.

It is an arithmetic number, because the mean of its divisors is an integer number (1190153328).

Almost surely, 2^11221445532 is an apocalyptic number.

11221445532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221445532 is an abundant number, since it is smaller than the sum of its proper divisors (17342234340).

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

11221445532 is a wasteful number, since it uses less digits than its factorization.

11221445532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85010969 (or 85010967 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

Adding to 11221445532 its reverse (23554412211), we get a palindrome (34775857743).

The spelling of 11221445532 in words is "eleven billion, two hundred twenty-one million, four hundred forty-five thousand, five hundred thirty-two".