11211320330220 has 48 divisors (see below), whose sum is σ = 31398467532768. Its totient is φ = 2989040601600.

The previous prime is 11211320330167. The next prime is 11211320330233. The reversal of 11211320330220 is 2203302311211.

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, 19870081 + ... + 20426520.

It is an arithmetic number, because the mean of its divisors is an integer number (654134740266).

Almost surely, 2^{11211320330220} is an apocalyptic number.

11211320330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211320330220 is an abundant number, since it is smaller than the sum of its proper divisors (20187147202548).

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

11211320330220 is a wasteful number, since it uses less digits than its factorization.

11211320330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40301250 (or 40301248 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11211320330220 its reverse (2203302311211), we get a palindrome (13414622641431).

The spelling of 11211320330220 in words is "eleven trillion, two hundred eleven billion, three hundred twenty million, three hundred thirty thousand, two hundred twenty".