210000021102 has 48 divisors (see below), whose sum is σ = 483411090240. Its totient is φ = 65759553216.

The previous prime is 210000021083. The next prime is 210000021107. The reversal of 210000021102 is 201120000012.

210000021102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000021107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5417158 + ... + 5455785.

It is an arithmetic number, because the mean of its divisors is an integer number (10071064380).

Almost surely, 2^210000021102 is an apocalyptic number.

210000021102 is an abundant number, since it is smaller than the sum of its proper divisors (273411069138).

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

210000021102 is a wasteful number, since it uses less digits than its factorization.

210000021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10873017 (or 10873014 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210000021102 its reverse (201120000012), we get a palindrome (411120021114).

The spelling of 210000021102 in words is "two hundred ten billion, twenty-one thousand, one hundred two".