122211210 has 96 divisors (see below), whose sum is σ = 326120256. Its totient is φ = 29286400.

The previous prime is 122211209. The next prime is 122211217. The reversal of 122211210 is 12112221.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475402 + ... + 475658.

It is an arithmetic number, because the mean of its divisors is an integer number (3397086).

Almost surely, 2^122211210 is an apocalyptic number.

122211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122211210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163060128).

122211210 is an abundant number, since it is smaller than the sum of its proper divisors (203909046).

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

122211210 is a wasteful number, since it uses less digits than its factorization.

122211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122211210 is about 11054.9179101430. The cubic root of 122211210 is about 496.2536126058.

Adding to 122211210 its reverse (12112221), we get a palindrome (134323431).

It can be divided in two parts, 12221 and 1210, that added together give a palindrome (13431).

The spelling of 122211210 in words is "one hundred twenty-two million, two hundred eleven thousand, two hundred ten".