1121010110020 has 48 divisors (see below), whose sum is σ = 2373058050048. Its totient is φ = 444798224640.

The previous prime is 1121010109903. The next prime is 1121010110081. The reversal of 1121010110020 is 200110101211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1121010109979 and 1121010110006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16453144 + ... + 16521136.

It is an arithmetic number, because the mean of its divisors is an integer number (49438709376).

Almost surely, 2^{1121010110020} is an apocalyptic number.

1121010110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121010110020 is an abundant number, since it is smaller than the sum of its proper divisors (1252047940028).

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

1121010110020 is a wasteful number, since it uses less digits than its factorization.

1121010110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74620 (or 74618 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1121010110020 its reverse (200110101211), we get a palindrome (1321120211231).

The spelling of 1121010110020 in words is "one trillion, one hundred twenty-one billion, ten million, one hundred ten thousand, twenty".