122220222210 has 192 divisors, whose sum is σ = 327923406720. Its totient is φ = 31570560000.

The previous prime is 122220222199. The next prime is 122220222217. The reversal of 122220222210 is 12222022221.

122220222210 is a `hidden beast` number, since 12 + 2 + 220 + 222 + 210 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (122220222217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 150702705 + ... + 150703515.

It is an arithmetic number, because the mean of its divisors is an integer number (1707934410).

Almost surely, 2^122220222210 is an apocalyptic number.

122220222210 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 122220222210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163961703360).

122220222210 is an abundant number, since it is smaller than the sum of its proper divisors (205703184510).

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

122220222210 is a wasteful number, since it uses less digits than its factorization.

122220222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122220222210 its reverse (12222022221), we get a palindrome (134442244431).

The spelling of 122220222210 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, two hundred ten".