21441112132 has 12 divisors (see below), whose sum is σ = 40933032336. Its totient is φ = 9745960040.

The previous prime is 21441112109. The next prime is 21441112151. The reversal of 21441112132 is 23121114412.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243648958 + ... + 243649045.

It is an arithmetic number, because the mean of its divisors is an integer number (3411086028).

Almost surely, 2^21441112132 is an apocalyptic number.

21441112132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21441112132 is a deficient number, since it is larger than the sum of its proper divisors (19491920204).

21441112132 is a wasteful number, since it uses less digits than its factorization.

21441112132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487298018 (or 487298016 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

Adding to 21441112132 its reverse (23121114412), we get a palindrome (44562226544).

The spelling of 21441112132 in words is "twenty-one billion, four hundred forty-one million, one hundred twelve thousand, one hundred thirty-two".