20002101210102 has 64 divisors (see below), whose sum is σ = 44434689073920. Its totient is φ = 5951251286400.

The previous prime is 20002101210089. The next prime is 20002101210109. The reversal of 20002101210102 is 20101210120002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002101210109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68688 + ... + 6325260.

It is an arithmetic number, because the mean of its divisors is an integer number (694292016780).

Almost surely, 2^{20002101210102} is an apocalyptic number.

20002101210102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002101210102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22217344536960).

20002101210102 is an abundant number, since it is smaller than the sum of its proper divisors (24432587863818).

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

20002101210102 is a wasteful number, since it uses less digits than its factorization.

20002101210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257469.

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

Adding to 20002101210102 its reverse (20101210120002), we get a palindrome (40103311330104).

The spelling of 20002101210102 in words is "twenty trillion, two billion, one hundred one million, two hundred ten thousand, one hundred two".