1110000021020 has 96 divisors (see below), whose sum is σ = 2578816106496. Its totient is φ = 397941465600.

The previous prime is 1110000021001. The next prime is 1110000021037. The reversal of 1110000021020 is 201200000111.

It is a junction number, because it is equal to n+sod(n) for n = 1110000020989 and 1110000021007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42497765 + ... + 42523875.

It is an arithmetic number, because the mean of its divisors is an integer number (26862667776).

Almost surely, 2^{1110000021020} is an apocalyptic number.

1110000021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1110000021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289408053248).

1110000021020 is an abundant number, since it is smaller than the sum of its proper divisors (1468816085476).

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

1110000021020 is a wasteful number, since it uses less digits than its factorization.

1110000021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28851 (or 28849 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1110000021020 its reverse (201200000111), we get a palindrome (1311200021131).

The spelling of 1110000021020 in words is "one trillion, one hundred ten billion, twenty-one thousand, twenty".