20212102110102 has 192 divisors, whose sum is σ = 47680535542464. Its totient is φ = 5694943887360.

The previous prime is 20212102110071. The next prime is 20212102110163. The reversal of 20212102110102 is 20101120121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5374127902 + ... + 5374131662.

It is an arithmetic number, because the mean of its divisors is an integer number (248336122617).

Almost surely, 2^{20212102110102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212102110102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23840267771232).

20212102110102 is an abundant number, since it is smaller than the sum of its proper divisors (27468433432362).

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

20212102110102 is a wasteful number, since it uses less digits than its factorization.

20212102110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783 (or 4776 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20212102110102 its reverse (20101120121202), we get a palindrome (40313222231304).

The spelling of 20212102110102 in words is "twenty trillion, two hundred twelve billion, one hundred two million, one hundred ten thousand, one hundred two".