21110100132 has 96 divisors (see below), whose sum is σ = 58731208704. Its totient is φ = 5826470400.

The previous prime is 21110100083. The next prime is 21110100133. The reversal of 21110100132 is 23100101112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (21110100133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82168 + ... + 221295.

It is an arithmetic number, because the mean of its divisors is an integer number (611783424).

Almost surely, 2^21110100132 is an apocalyptic number.

21110100132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21110100132 is an abundant number, since it is smaller than the sum of its proper divisors (37621108572).

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

21110100132 is a wasteful number, since it uses less digits than its factorization.

21110100132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303529 (or 303527 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 21110100132 its reverse (23100101112), we get a palindrome (44210201244).

The spelling of 21110100132 in words is "twenty-one billion, one hundred ten million, one hundred thousand, one hundred thirty-two".