11331111322220 has 12 divisors (see below), whose sum is σ = 23795333776704. Its totient is φ = 4532444528880.

The previous prime is 11331111322213. The next prime is 11331111322229. The reversal of 11331111322220 is 2222311113311.

It is a happy number.

11331111322220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11331111322229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283277783036 + ... + 283277783075.

It is an arithmetic number, because the mean of its divisors is an integer number (1982944481392).

Almost surely, 2^{11331111322220} is an apocalyptic number.

11331111322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331111322220 is an abundant number, since it is smaller than the sum of its proper divisors (12464222454484).

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

11331111322220 is a wasteful number, since it uses less digits than its factorization.

11331111322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566555566120 (or 566555566118 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11331111322220 its reverse (2222311113311), we get a palindrome (13553422435531).

The spelling of 11331111322220 in words is "eleven trillion, three hundred thirty-one billion, one hundred eleven million, three hundred twenty-two thousand, two hundred twenty".