212220012220110 has 192 divisors, whose sum is σ = 577473982525440. Its totient is φ = 54006826360320.

The previous prime is 212220012220019. The next prime is 212220012220147. The reversal of 212220012220110 is 11022210022212.

It is a happy number.

212220012220110 is a `hidden beast` number, since 2 + 122 + 200 + 12 + 220 + 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 an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1209508407 + ... + 1209683853.

It is an arithmetic number, because the mean of its divisors is an integer number (3007676992320).

Almost surely, 2^{212220012220110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212220012220110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288736991262720).

212220012220110 is an abundant number, since it is smaller than the sum of its proper divisors (365253970305330).

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

212220012220110 is a wasteful number, since it uses less digits than its factorization.

212220012220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181503 (or 181500 counting only the distinct ones).

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

Adding to 212220012220110 its reverse (11022210022212), we get a palindrome (223242222242322).

The spelling of 212220012220110 in words is "two hundred twelve trillion, two hundred twenty billion, twelve million, two hundred twenty thousand, one hundred ten".