21302120200012 has 12 divisors (see below), whose sum is σ = 37803762608976. Its totient is φ = 10501045168880.

The previous prime is 21302120200003. The next prime is 21302120200019. The reversal of 21302120200012 is 21000202120312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21302120200019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37503732463 + ... + 37503733030.

It is an arithmetic number, because the mean of its divisors is an integer number (3150313550748).

Almost surely, 2^{21302120200012} is an apocalyptic number.

It is an amenable number.

21302120200012 is a deficient number, since it is larger than the sum of its proper divisors (16501642408964).

21302120200012 is a wasteful number, since it uses less digits than its factorization.

21302120200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75007465568 (or 75007465566 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21302120200012 its reverse (21000202120312), we get a palindrome (42302322320324).

The spelling of 21302120200012 in words is "twenty-one trillion, three hundred two billion, one hundred twenty million, two hundred thousand, twelve".