11555214032220 has 24 divisors (see below), whose sum is σ = 32354599290384. Its totient is φ = 3081390408576.

The previous prime is 11555214032209. The next prime is 11555214032227. The reversal of 11555214032220 is 2223041255511.

11555214032220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555214032227) 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, 96293450209 + ... + 96293450328.

It is an arithmetic number, because the mean of its divisors is an integer number (1348108303766).

Almost surely, 2^{11555214032220} is an apocalyptic number.

11555214032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11555214032220 is an abundant number, since it is smaller than the sum of its proper divisors (20799385258164).

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

11555214032220 is a wasteful number, since it uses less digits than its factorization.

11555214032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192586900549 (or 192586900547 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 11555214032220 its reverse (2223041255511), we get a palindrome (13778255287731).

The spelling of 11555214032220 in words is "eleven trillion, five hundred fifty-five billion, two hundred fourteen million, thirty-two thousand, two hundred twenty".