21010112132 has 6 divisors (see below), whose sum is σ = 36767696238. Its totient is φ = 10505056064.

The previous prime is 21010112089. The next prime is 21010112159. The reversal of 21010112132 is 23121101012.

It can be written as a sum of positive squares in only one way, i.e., 20670963076 + 339149056 = 143774^2 + 18416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626264013 + ... + 2626264020.

It is an arithmetic number, because the mean of its divisors is an integer number (6127949373).

Almost surely, 2^21010112132 is an apocalyptic number.

It is an amenable number.

21010112132 is a deficient number, since it is larger than the sum of its proper divisors (15757584106).

21010112132 is a wasteful number, since it uses less digits than its factorization.

21010112132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252528037 (or 5252528035 counting only the distinct ones).

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

Adding to 21010112132 its reverse (23121101012), we get a palindrome (44131213144).

The spelling of 21010112132 in words is "twenty-one billion, ten million, one hundred twelve thousand, one hundred thirty-two".