122222000121210 has 256 divisors, whose sum is σ = 371715277824000. Its totient is φ = 28341324982080.

The previous prime is 122222000121209. The next prime is 122222000121257. The reversal of 122222000121210 is 12121000222221.

It is a happy number.

122222000121210 is a `hidden beast` number, since 1 + 222 + 220 + 0 + 0 + 1 + 212 + 10 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 34444851 + ... + 37827129.

It is an arithmetic number, because the mean of its divisors is an integer number (1452012804000).

Almost surely, 2^{122222000121210} is an apocalyptic number.

122222000121210 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 122222000121210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185857638912000).

122222000121210 is an abundant number, since it is smaller than the sum of its proper divisors (249493277702790).

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

122222000121210 is a wasteful number, since it uses less digits than its factorization.

122222000121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382375 (or 3382323 counting only the distinct ones).

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

Adding to 122222000121210 its reverse (12121000222221), we get a palindrome (134343000343431).

The spelling of 122222000121210 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one thousand, two hundred ten".