11121000210020 has 12 divisors (see below), whose sum is σ = 23354100441084. Its totient is φ = 4448400084000.

The previous prime is 11121000210007. The next prime is 11121000210053. The reversal of 11121000210020 is 2001200012111.

It can be written as a sum of positive squares in 2 ways, for example, as 4130560334884 + 6990439875136 = 2032378^2 + 2643944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11121000209983 and 11121000210010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278025005231 + ... + 278025005270.

It is an arithmetic number, because the mean of its divisors is an integer number (1946175036757).

Almost surely, 2^{11121000210020} is an apocalyptic number.

11121000210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121000210020 is an abundant number, since it is smaller than the sum of its proper divisors (12233100231064).

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

11121000210020 is a wasteful number, since it uses less digits than its factorization.

11121000210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556050010510 (or 556050010508 counting only the distinct ones).

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

Adding to 11121000210020 its reverse (2001200012111), we get a palindrome (13122200222131).

The spelling of 11121000210020 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten thousand, twenty".