1100021122020 has 24 divisors (see below), whose sum is σ = 3080059141824. Its totient is φ = 293338965856.

The previous prime is 1100021122019. The next prime is 1100021122087. The reversal of 1100021122020 is 202211200011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1100021121987 and 1100021122005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9166842624 + ... + 9166842743.

It is an arithmetic number, because the mean of its divisors is an integer number (128335797576).

Almost surely, 2^{1100021122020} is an apocalyptic number.

1100021122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100021122020 is an abundant number, since it is smaller than the sum of its proper divisors (1980038019804).

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

1100021122020 is a wasteful number, since it uses less digits than its factorization.

1100021122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18333685379 (or 18333685377 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100021122020 its reverse (202211200011), we get a palindrome (1302232322031).

The spelling of 1100021122020 in words is "one trillion, one hundred billion, twenty-one million, one hundred twenty-two thousand, twenty".