1220120122112 has 36 divisors (see below), whose sum is σ = 2454651177216. Its totient is φ = 605256422400.

The previous prime is 1220120122043. The next prime is 1220120122121. The reversal of 1220120122112 is 2112210210221.

It is a super-2 number, since 2×1220120122112² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18731639 + ... + 18796662.

Almost surely, 2^{1220120122112} is an apocalyptic number.

It is an amenable number.

1220120122112 is an abundant number, since it is smaller than the sum of its proper divisors (1234531055104).

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

1220120122112 is an equidigital number, since it uses as much as digits as its factorization.

1220120122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37528444 (or 37528430 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220120122112 its reverse (2112210210221), we get a palindrome (3332330332333).

The spelling of 1220120122112 in words is "one trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twelve".