21110230002 has 32 divisors (see below), whose sum is σ = 42500505600. Its totient is φ = 6990218000.

The previous prime is 21110229977. The next prime is 21110230007. The reversal of 21110230002 is 20003201112.

It is a self number, because there is not a number n which added to its sum of digits gives 21110230002.

It is not an unprimeable number, because it can be changed into a prime (21110230007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558499 + ... + 595097.

It is an arithmetic number, because the mean of its divisors is an integer number (1328140800).

Almost surely, 2^21110230002 is an apocalyptic number.

21110230002 is an abundant number, since it is smaller than the sum of its proper divisors (21390275598).

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

21110230002 is a wasteful number, since it uses less digits than its factorization.

21110230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37238.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21110230002 its reverse (20003201112), we get a palindrome (41113431114).

The spelling of 21110230002 in words is "twenty-one billion, one hundred ten million, two hundred thirty thousand, two".