21132010112 has 32 divisors (see below), whose sum is σ = 42727285920. Its totient is φ = 10408299264.

The previous prime is 21132010111. The next prime is 21132010147. The reversal of 21132010112 is 21101023112.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (21132010111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223468 + ... + 1240619.

It is an arithmetic number, because the mean of its divisors is an integer number (1335227685).

Almost surely, 2^21132010112 is an apocalyptic number.

It is an amenable number.

21132010112 is an abundant number, since it is smaller than the sum of its proper divisors (21595275808).

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

21132010112 is an equidigital number, since it uses as much as digits as its factorization.

21132010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464168 (or 2464156 counting only the distinct ones).

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

Adding to 21132010112 its reverse (21101023112), we get a palindrome (42233033224).

The spelling of 21132010112 in words is "twenty-one billion, one hundred thirty-two million, ten thousand, one hundred twelve".