11212020200220 has 384 divisors, whose sum is σ = 38275517952000. Its totient is φ = 2451268925952.

The previous prime is 11212020200201. The next prime is 11212020200233. The reversal of 11212020200220 is 2200202021211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11212020200220.

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 127 ways as a sum of consecutive naturals, for example, 250374472 + ... + 250419248.

It is an arithmetic number, because the mean of its divisors is an integer number (99675828000).

Almost surely, 2^{11212020200220} is an apocalyptic number.

11212020200220 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 11212020200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19137758976000).

11212020200220 is an abundant number, since it is smaller than the sum of its proper divisors (27063497751780).

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

11212020200220 is an equidigital number, since it uses as much as digits as its factorization.

11212020200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44879 (or 44817 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11212020200220 its reverse (2200202021211), we get a palindrome (13412222221431).

The spelling of 11212020200220 in words is "eleven trillion, two hundred twelve billion, twenty million, two hundred thousand, two hundred twenty".