21020110022202 has 16 divisors (see below), whose sum is σ = 42667686016032. Its totient is φ = 6902125678800.

The previous prime is 21020110022201. The next prime is 21020110022279. The reversal of 21020110022202 is 20222001102012.

It is not an unprimeable number, because it can be changed into a prime (21020110022201) 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 7 ways as a sum of consecutive naturals, for example, 26144415049 + ... + 26144415852.

It is an arithmetic number, because the mean of its divisors is an integer number (2666730376002).

Almost surely, 2^{21020110022202} is an apocalyptic number.

21020110022202 is an abundant number, since it is smaller than the sum of its proper divisors (21647575993830).

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

21020110022202 is a wasteful number, since it uses less digits than its factorization.

21020110022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52288830973.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21020110022202 its reverse (20222001102012), we get a palindrome (41242111124214).

The spelling of 21020110022202 in words is "twenty-one trillion, twenty billion, one hundred ten million, twenty-two thousand, two hundred two".