21101112032 has 96 divisors (see below), whose sum is σ = 55777849344. Its totient is φ = 7588800000.

The previous prime is 21101112013. The next prime is 21101112041. The reversal of 21101112032 is 23021110112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 21101111998 and 21101112016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297344 + ... + 361407.

It is an arithmetic number, because the mean of its divisors is an integer number (581019264).

Almost surely, 2^21101112032 is an apocalyptic number.

21101112032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21101112032 is an abundant number, since it is smaller than the sum of its proper divisors (34676737312).

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

21101112032 is a wasteful number, since it uses less digits than its factorization.

21101112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658792 (or 658784 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21101112032 its reverse (23021110112), we get a palindrome (44122222144).

The spelling of 21101112032 in words is "twenty-one billion, one hundred one million, one hundred twelve thousand, thirty-two".