21211313132 has 6 divisors (see below), whose sum is σ = 37119797988. Its totient is φ = 10605656564.

The previous prime is 21211313099. The next prime is 21211313143. The reversal of 21211313132 is 23131311212.

It is a happy number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2651414138 + ... + 2651414145.

It is an arithmetic number, because the mean of its divisors is an integer number (6186632998).

Almost surely, 2^21211313132 is an apocalyptic number.

It is an amenable number.

21211313132 is a deficient number, since it is larger than the sum of its proper divisors (15908484856).

21211313132 is a wasteful number, since it uses less digits than its factorization.

21211313132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302828287 (or 5302828285 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 21211313132 its reverse (23131311212), we get a palindrome (44342624344).

The spelling of 21211313132 in words is "twenty-one billion, two hundred eleven million, three hundred thirteen thousand, one hundred thirty-two".