21035324212 has 48 divisors (see below), whose sum is σ = 43816405248. Its totient is φ = 8647914240.

The previous prime is 21035324207. The next prime is 21035324231. The reversal of 21035324212 is 21242353012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69433 + ... + 216544.

It is an arithmetic number, because the mean of its divisors is an integer number (912841776).

Almost surely, 2^21035324212 is an apocalyptic number.

It is an amenable number.

21035324212 is an abundant number, since it is smaller than the sum of its proper divisors (22781081036).

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

21035324212 is a wasteful number, since it uses less digits than its factorization.

21035324212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286096 (or 286094 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 21035324212 its reverse (21242353012), we get a palindrome (42277677224).

The spelling of 21035324212 in words is "twenty-one billion, thirty-five million, three hundred twenty-four thousand, two hundred twelve".