212220110 has 16 divisors (see below), whose sum is σ = 394319232. Its totient is φ = 82149600.

The previous prime is 212220097. The next prime is 212220119. The reversal of 212220110 is 11022212.

It is a happy number.

212220110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212220091 and 212220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341981 + ... + 342600.

It is an arithmetic number, because the mean of its divisors is an integer number (24644952).

Almost surely, 2^212220110 is an apocalyptic number.

212220110 is a deficient number, since it is larger than the sum of its proper divisors (182099122).

212220110 is a wasteful number, since it uses less digits than its factorization.

212220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684619.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 212220110 is about 14567.7764260713. The cubic root of 212220110 is about 596.4794855498.

Adding to 212220110 its reverse (11022212), we get a palindrome (223242322).

The spelling of 212220110 in words is "two hundred twelve million, two hundred twenty thousand, one hundred ten".