21110200110102 has 32 divisors (see below), whose sum is σ = 42245454867840. Its totient is φ = 7032558049920.

The previous prime is 21110200110101. The next prime is 21110200110121. The reversal of 21110200110102 is 20101100201112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110200110101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231580849 + ... + 231671987.

It is an arithmetic number, because the mean of its divisors is an integer number (1320170464620).

Almost surely, 2^{21110200110102} is an apocalyptic number.

21110200110102 is an abundant number, since it is smaller than the sum of its proper divisors (21135254757738).

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

21110200110102 is a wasteful number, since it uses less digits than its factorization.

21110200110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113628.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21110200110102 its reverse (20101100201112), we get a palindrome (41211300311214).

The spelling of 21110200110102 in words is "twenty-one trillion, one hundred ten billion, two hundred million, one hundred ten thousand, one hundred two".