1100211210020 has 48 divisors (see below), whose sum is σ = 2488267515888. Its totient is φ = 406215905280.

The previous prime is 1100211210019. The next prime is 1100211210031. The reversal of 1100211210020 is 200121120011.

It can be written as a sum of positive squares in 8 ways, for example, as 107462018596 + 992749191424 = 327814^2 + 996368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1100211209983 and 1100211210010.

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, 8117852 + ... + 8252268.

It is an arithmetic number, because the mean of its divisors is an integer number (51838906581).

Almost surely, 2^{1100211210020} is an apocalyptic number.

1100211210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100211210020 is an abundant number, since it is smaller than the sum of its proper divisors (1388056305868).

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

1100211210020 is a wasteful number, since it uses less digits than its factorization.

1100211210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165920 (or 165918 counting only the distinct ones).

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

Adding to 1100211210020 its reverse (200121120011), we get a palindrome (1300332330031).

Subtracting from 1100211210020 its reverse (200121120011), we obtain a palindrome (900090090009).

The spelling of 1100211210020 in words is "one trillion, one hundred billion, two hundred eleven million, two hundred ten thousand, twenty".