122212110212220 has 192 divisors, whose sum is σ = 394212917145600. Its totient is φ = 27710812972032.

The previous prime is 122212110212201. The next prime is 122212110212263. The reversal of 122212110212220 is 22212011212221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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, 47111149 + ... + 49637531.

It is an arithmetic number, because the mean of its divisors is an integer number (2053192276800).

Almost surely, 2^{122212110212220} is an apocalyptic number.

122212110212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122212110212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197106458572800).

122212110212220 is an abundant number, since it is smaller than the sum of its proper divisors (272000806933380).

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

122212110212220 is a wasteful number, since it uses less digits than its factorization.

122212110212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527324 (or 2527322 counting only the distinct ones).

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

Adding to 122212110212220 its reverse (22212011212221), we get a palindrome (144424121424441).

The spelling of 122212110212220 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred ten million, two hundred twelve thousand, two hundred twenty".