20210100202102 has 16 divisors (see below), whose sum is σ = 31061815775424. Its totient is φ = 9856277032000.

The previous prime is 20210100202063. The next prime is 20210100202129. The reversal of 20210100202102 is 20120200101202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28503049 + ... + 29203492.

It is an arithmetic number, because the mean of its divisors is an integer number (1941363485964).

Almost surely, 2^{20210100202102} is an apocalyptic number.

20210100202102 is a deficient number, since it is larger than the sum of its proper divisors (10851715573322).

20210100202102 is a wasteful number, since it uses less digits than its factorization.

20210100202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57710855.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20210100202102 its reverse (20120200101202), we get a palindrome (40330300303304).

The spelling of 20210100202102 in words is "twenty trillion, two hundred ten billion, one hundred million, two hundred two thousand, one hundred two".