11011210100020 has 24 divisors (see below), whose sum is σ = 24902275149864. Its totient is φ = 4065677575296.

The previous prime is 11011210099973. The next prime is 11011210100069. The reversal of 11011210100020 is 2000101211011.

It can be written as a sum of positive squares in 4 ways, for example, as 766524764196 + 10244685335824 = 875514^2 + 3200732^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21175403779 + ... + 21175404298.

It is an arithmetic number, because the mean of its divisors is an integer number (1037594797911).

Almost surely, 2^{11011210100020} is an apocalyptic number.

11011210100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011210100020 is an abundant number, since it is smaller than the sum of its proper divisors (13891065049844).

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

11011210100020 is a wasteful number, since it uses less digits than its factorization.

11011210100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42350808099 (or 42350808097 counting only the distinct ones).

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

Adding to 11011210100020 its reverse (2000101211011), we get a palindrome (13011311311031).

The spelling of 11011210100020 in words is "eleven trillion, eleven billion, two hundred ten million, one hundred thousand, twenty".