1121020022120 has 16 divisors (see below), whose sum is σ = 2522295049860. Its totient is φ = 448408008832.

The previous prime is 1121020022093. The next prime is 1121020022197. The reversal of 1121020022120 is 212200201211.

It can be written as a sum of positive squares in 2 ways, for example, as 1120816046596 + 203975524 = 1058686^2 + 14282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121020022095 and 1121020022104.

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, 14012750237 + ... + 14012750316.

Almost surely, 2^{1121020022120} is an apocalyptic number.

1121020022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121020022120 is an abundant number, since it is smaller than the sum of its proper divisors (1401275027740).

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

1121020022120 is a wasteful number, since it uses less digits than its factorization.

1121020022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28025500564 (or 28025500560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1121020022120 its reverse (212200201211), we get a palindrome (1333220223331).

The spelling of 1121020022120 in words is "one trillion, one hundred twenty-one billion, twenty million, twenty-two thousand, one hundred twenty".