1112121222120 has 48 divisors (see below), whose sum is σ = 3614393973060. Its totient is φ = 296565659136.

The previous prime is 1112121222103. The next prime is 1112121222131. The reversal of 1112121222120 is 212221212111.

1112121222120 is a `hidden beast` number, since 111 + 212 + 1 + 222 + 120 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 962867262564 + 149253959556 = 981258^2 + 386334^2 .

It is a super-2 number, since 2×1112121222120² (a number of 25 digits) contains 22 as substring.

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 = 1112121222093 and 1112121222102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1544612449 + ... + 1544613168.

Almost surely, 2^{1112121222120} is an apocalyptic number.

1112121222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112121222120 is an abundant number, since it is smaller than the sum of its proper divisors (2502272750940).

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

1112121222120 is a wasteful number, since it uses less digits than its factorization.

1112121222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089225634 (or 3089225627 counting only the distinct ones).

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

Adding to 1112121222120 its reverse (212221212111), we get a palindrome (1324342434231).

The spelling of 1112121222120 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty".