21132230113012 has 12 divisors (see below), whose sum is σ = 37073625649956. Its totient is φ = 10539765641600.

The previous prime is 21132230113009. The next prime is 21132230113021. The reversal of 21132230113012 is 21031103223112.

It can be written as a sum of positive squares in 2 ways, for example, as 11472541248996 + 9659688864016 = 3387114^2 + 3108004^2 .

It is a super-2 number, since 2×21132230113012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6587351923 + ... + 6587355130.

It is an arithmetic number, because the mean of its divisors is an integer number (3089468804163).

Almost surely, 2^{21132230113012} is an apocalyptic number.

It is an amenable number.

21132230113012 is a deficient number, since it is larger than the sum of its proper divisors (15941395536944).

21132230113012 is a wasteful number, since it uses less digits than its factorization.

21132230113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13174707458 (or 13174707456 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21132230113012 its reverse (21031103223112), we get a palindrome (42163333336124).

The spelling of 21132230113012 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred thirty million, one hundred thirteen thousand, twelve".