11031322121220 has 24 divisors (see below), whose sum is σ = 30887701939584. Its totient is φ = 2941685898976.

The previous prime is 11031322121213. The next prime is 11031322121231. The reversal of 11031322121220 is 2212122313011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91927684284 + ... + 91927684403.

It is an arithmetic number, because the mean of its divisors is an integer number (1286987580816).

Almost surely, 2^{11031322121220} is an apocalyptic number.

11031322121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11031322121220 is an abundant number, since it is smaller than the sum of its proper divisors (19856379818364).

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

11031322121220 is a wasteful number, since it uses less digits than its factorization.

11031322121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183855368699 (or 183855368697 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11031322121220 its reverse (2212122313011), we get a palindrome (13243444434231).

The spelling of 11031322121220 in words is "eleven trillion, thirty-one billion, three hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty".