1222112211120 has 240 divisors, whose sum is σ = 4258650658080. Its totient is φ = 313818955776.

The previous prime is 1222112211109. The next prime is 1222112211277. The reversal of 1222112211120 is 211122112221.

1222112211120 is a `hidden beast` number, since 1 + 222 + 112 + 211 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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 = 1222112211093 and 1222112211102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2347611 + ... + 2820549.

It is an arithmetic number, because the mean of its divisors is an integer number (17744377742).

Almost surely, 2^{1222112211120} is an apocalyptic number.

1222112211120 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 1222112211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2129325329040).

1222112211120 is an abundant number, since it is smaller than the sum of its proper divisors (3036538446960).

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

1222112211120 is a wasteful number, since it uses less digits than its factorization.

1222112211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473092 (or 473083 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1222112211120 its reverse (211122112221), we get a palindrome (1433234323341).

The spelling of 1222112211120 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, one hundred twenty".