1121020110020 has 24 divisors (see below), whose sum is σ = 2372112787968. Its totient is φ = 444985080800.

The previous prime is 1121020109983. The next prime is 1121020110059. The reversal of 1121020110020 is 200110201211.

It is a junction number, because it is equal to n+sod(n) for n = 1121020109983 and 1121020110010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213932516 + ... + 213937755.

It is an arithmetic number, because the mean of its divisors is an integer number (98838032832).

Almost surely, 2^{1121020110020} is an apocalyptic number.

1121020110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121020110020 is an abundant number, since it is smaller than the sum of its proper divisors (1251092677948).

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

1121020110020 is a wasteful number, since it uses less digits than its factorization.

1121020110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427870411 (or 427870409 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1121020110020 its reverse (200110201211), we get a palindrome (1321130311231).

The spelling of 1121020110020 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred ten thousand, twenty".