21214203132 has 48 divisors (see below), whose sum is σ = 49634635680. Its totient is φ = 7052172288.

The previous prime is 21214203107. The next prime is 21214203139. The reversal of 21214203132 is 23130241212.

It is a junction number, because it is equal to n+sod(n) for n = 21214203099 and 21214203108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214203139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9250578 + ... + 9252870.

It is an arithmetic number, because the mean of its divisors is an integer number (1034054910).

Almost surely, 2^21214203132 is an apocalyptic number.

It is an amenable number.

21214203132 is an abundant number, since it is smaller than the sum of its proper divisors (28420432548).

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

21214203132 is a wasteful number, since it uses less digits than its factorization.

21214203132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062 (or 4060 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21214203132 its reverse (23130241212), we get a palindrome (44344444344).

The spelling of 21214203132 in words is "twenty-one billion, two hundred fourteen million, two hundred three thousand, one hundred thirty-two".