122212211022210 has 128 divisors (see below), whose sum is σ = 314399724480000. Its totient is φ = 30324098635776.

The previous prime is 122212211022179. The next prime is 122212211022227. The reversal of 122212211022210 is 12220112212221.

It is a super-2 number, since 2×122212211022210² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121865916 + ... + 122864664.

It is an arithmetic number, because the mean of its divisors is an integer number (2456247847500).

Almost surely, 2^{122212211022210} is an apocalyptic number.

122212211022210 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 122212211022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157199862240000).

122212211022210 is an abundant number, since it is smaller than the sum of its proper divisors (192187513457790).

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

122212211022210 is a wasteful number, since it uses less digits than its factorization.

122212211022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003612.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122212211022210 its reverse (12220112212221), we get a palindrome (134432323234431).

The spelling of 122212211022210 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred eleven million, twenty-two thousand, two hundred ten".