21110200210002 has 16 divisors (see below), whose sum is σ = 42221445266592. Its totient is φ = 7036559262240.

The previous prime is 21110200209971. The next prime is 21110200210009. The reversal of 21110200210002 is 20001200201112.

It is a self number, because there is not a number n which added to its sum of digits gives 21110200210002.

It is not an unprimeable number, because it can be changed into a prime (21110200210009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43272499 + ... + 43757622.

It is an arithmetic number, because the mean of its divisors is an integer number (2638840329162).

Almost surely, 2^{21110200210002} is an apocalyptic number.

21110200210002 is an abundant number, since it is smaller than the sum of its proper divisors (21111245056590).

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

21110200210002 is a wasteful number, since it uses less digits than its factorization.

21110200210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87070553.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21110200210002 its reverse (20001200201112), we get a palindrome (41111400411114).

The spelling of 21110200210002 in words is "twenty-one trillion, one hundred ten billion, two hundred million, two hundred ten thousand, two".