11432221444 has 24 divisors (see below), whose sum is σ = 22982922368. Its totient is φ = 4874135040.

The previous prime is 11432221439. The next prime is 11432221453. The reversal of 11432221444 is 44412223411.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052352 + ... + 1063159.

Almost surely, 2^11432221444 is an apocalyptic number.

11432221444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11432221444 is an abundant number, since it is smaller than the sum of its proper divisors (11550700924).

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

11432221444 is a wasteful number, since it uses less digits than its factorization.

11432221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115715 (or 2115713 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 11432221444 its reverse (44412223411), we get a palindrome (55844444855).

The spelling of 11432221444 in words is "eleven billion, four hundred thirty-two million, two hundred twenty-one thousand, four hundred forty-four".