222112120012020 has 288 divisors, whose sum is σ = 840533457254400. Its totient is φ = 48096458930304.

The previous prime is 222112120011989. The next prime is 222112120012037. The reversal of 222112120012020 is 20210021211222.

It is a happy number.

222112120012020 is a `hidden beast` number, since 2 + 221 + 121 + 200 + 120 + 2 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 222112120011984 and 222112120012002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171165960 + ... + 172458719.

It is an arithmetic number, because the mean of its divisors is an integer number (2918518948800).

Almost surely, 2^{222112120012020} is an apocalyptic number.

222112120012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112120012020 is an abundant number, since it is smaller than the sum of its proper divisors (618421337242380).

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

222112120012020 is a wasteful number, since it uses less digits than its factorization.

222112120012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343624729 (or 343624715 counting only the distinct ones).

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

Adding to 222112120012020 its reverse (20210021211222), we get a palindrome (242322141223242).

The spelling of 222112120012020 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, twelve thousand, twenty".