11213232123220 has 24 divisors (see below), whose sum is σ = 24122123740008. Its totient is φ = 4375895462400.

The previous prime is 11213232123151. The next prime is 11213232123229. The reversal of 11213232123220 is 2232123231211.

11213232123220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 576162974916 + 10637069148304 = 759054^2 + 3261452^2 .

It is a super-4 number, since 4×11213232123220⁴ (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213232123229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6837335841 + ... + 6837337480.

It is an arithmetic number, because the mean of its divisors is an integer number (1005088489167).

Almost surely, 2^{11213232123220} is an apocalyptic number.

11213232123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11213232123220 is an abundant number, since it is smaller than the sum of its proper divisors (12908891616788).

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

11213232123220 is a wasteful number, since it uses less digits than its factorization.

11213232123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13674673371 (or 13674673369 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11213232123220 its reverse (2232123231211), we get a palindrome (13445355354431).

The spelling of 11213232123220 in words is "eleven trillion, two hundred thirteen billion, two hundred thirty-two million, one hundred twenty-three thousand, two hundred twenty".