122212112221220 has 24 divisors (see below), whose sum is σ = 293309069331264. Its totient is φ = 41901295618656.

The previous prime is 122212112221159. The next prime is 122212112221231. The reversal of 122212112221220 is 22122211212221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436471829222 + ... + 436471829501.

It is an arithmetic number, because the mean of its divisors is an integer number (12221211222136).

Almost surely, 2^{122212112221220} is an apocalyptic number.

122212112221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212112221220 is an abundant number, since it is smaller than the sum of its proper divisors (171096957110044).

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

122212112221220 is a wasteful number, since it uses less digits than its factorization.

122212112221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872943658739 (or 872943658737 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 122212112221220 its reverse (22122211212221), we get a palindrome (144334323433441).

The spelling of 122212112221220 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty".