2102100210102 has 32 divisors (see below), whose sum is σ = 4274569026144. Its totient is φ = 688979750400.

The previous prime is 2102100210073. The next prime is 2102100210103. The reversal of 2102100210102 is 2010120012012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102100210103) 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, 111102 + ... + 2053422.

It is an arithmetic number, because the mean of its divisors is an integer number (133580282067).

Almost surely, 2^{2102100210102} is an apocalyptic number.

2102100210102 is an abundant number, since it is smaller than the sum of its proper divisors (2172468816042).

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

2102100210102 is a wasteful number, since it uses less digits than its factorization.

2102100210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945344.

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

Adding to 2102100210102 its reverse (2010120012012), we get a palindrome (4112220222114).

The spelling of 2102100210102 in words is "two trillion, one hundred two billion, one hundred million, two hundred ten thousand, one hundred two".