212221202020110 has 96 divisors (see below), whose sum is σ = 584811511109280. Its totient is φ = 53210571853824.

The previous prime is 212221202020049. The next prime is 212221202020117. The reversal of 212221202020110 is 11020202122212.

It is a happy number.

212221202020110 is a `hidden beast` number, since 212 + 22 + 120 + 202 + 0 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221202020117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67190952 + ... + 70278491.

It is an arithmetic number, because the mean of its divisors is an integer number (6091786574055).

Almost surely, 2^{212221202020110} is an apocalyptic number.

212221202020110 is an abundant number, since it is smaller than the sum of its proper divisors (372590309089170).

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

212221202020110 is a wasteful number, since it uses less digits than its factorization.

212221202020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137470482 (or 137470479 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212221202020110 its reverse (11020202122212), we get a palindrome (223241404142322).

The spelling of 212221202020110 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred two million, twenty thousand, one hundred ten".