21302100232012 has 12 divisors (see below), whose sum is σ = 37282989628696. Its totient is φ = 10649817480960.

The previous prime is 21302100231911. The next prime is 21302100232067. The reversal of 21302100232012 is 21023200120312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308119878 + ... + 308189005.

Almost surely, 2^{21302100232012} is an apocalyptic number.

It is an amenable number.

21302100232012 is a deficient number, since it is larger than the sum of its proper divisors (15980889396684).

21302100232012 is a wasteful number, since it uses less digits than its factorization.

21302100232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616317528 (or 616317526 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21302100232012 its reverse (21023200120312), we get a palindrome (42325300352324).

The spelling of 21302100232012 in words is "twenty-one trillion, three hundred two billion, one hundred million, two hundred thirty-two thousand, twelve".