11210212020020 has 96 divisors (see below), whose sum is σ = 25941540092832. Its totient is φ = 4043627347968.

The previous prime is 11210212019977. The next prime is 11210212020071. The reversal of 11210212020020 is 2002021201211.

It can be written as a sum of positive squares in 16 ways, for example, as 5592449306896 + 5617762713124 = 2364836^2 + 2370182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11210212019977 and 11210212020004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465004 + ... + 4956476.

It is an arithmetic number, because the mean of its divisors is an integer number (270224375967).

Almost surely, 2^{11210212020020} is an apocalyptic number.

11210212020020 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 11210212020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12970770046416).

11210212020020 is an abundant number, since it is smaller than the sum of its proper divisors (14731328072812).

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

11210212020020 is a wasteful number, since it uses less digits than its factorization.

11210212020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491781 (or 3491779 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11210212020020 its reverse (2002021201211), we get a palindrome (13212233221231).

The spelling of 11210212020020 in words is "eleven trillion, two hundred ten billion, two hundred twelve million, twenty thousand, twenty".