120222112221220 has 24 divisors (see below), whose sum is σ = 252466768693944. Its totient is φ = 48088781454336.

The previous prime is 120222112221217. The next prime is 120222112221221. The reversal of 120222112221220 is 22122211222021.

It can be written as a sum of positive squares in 4 ways, for example, as 20337718789696 + 99884393431524 = 4509736^2 + 9994218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120222112221191 and 120222112221200.

It is not an unprimeable number, because it can be changed into a prime (120222112221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13439722 + ... + 20519998.

It is an arithmetic number, because the mean of its divisors is an integer number (10519448695581).

Almost surely, 2^{120222112221220} is an apocalyptic number.

120222112221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120222112221220 is an abundant number, since it is smaller than the sum of its proper divisors (132244656472724).

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

120222112221220 is a wasteful number, since it uses less digits than its factorization.

120222112221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929279 (or 7929277 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 120222112221220 its reverse (22122211222021), we get a palindrome (142344323443241).

The spelling of 120222112221220 in words is "one hundred twenty trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty".