1121203221120 has 192 divisors, whose sum is σ = 3976294949640. Its totient is φ = 290906726400.

The previous prime is 1121203221119. The next prime is 1121203221143. The reversal of 1121203221120 is 211223021211.

1121203221120 is a `hidden beast` number, since 1 + 121 + 203 + 221 + 120 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1077294533184 + 43908687936 = 1037928^2 + 209544^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-3 number, since 3×1121203221120³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 = 1121203221093 and 1121203221102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2417331 + ... + 2843570.

Almost surely, 2^{1121203221120} is an apocalyptic number.

1121203221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121203221120 is an abundant number, since it is smaller than the sum of its proper divisors (2855091728520).

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

1121203221120 is a wasteful number, since it uses less digits than its factorization.

1121203221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260963 (or 5260948 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1121203221120 its reverse (211223021211), we get a palindrome (1332426242331).

The spelling of 1121203221120 in words is "one trillion, one hundred twenty-one billion, two hundred three million, two hundred twenty-one thousand, one hundred twenty".