11013331220 has 24 divisors (see below), whose sum is σ = 23249092608. Its totient is φ = 4382266400.

The previous prime is 11013331213. The next prime is 11013331249. The reversal of 11013331220 is 2213331011.

It is a super-2 number, since 2×11013331220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1437716 + ... + 1445355.

It is an arithmetic number, because the mean of its divisors is an integer number (968712192).

Almost surely, 2^11013331220 is an apocalyptic number.

11013331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11013331220 is an abundant number, since it is smaller than the sum of its proper divisors (12235761388).

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

11013331220 is a wasteful number, since it uses less digits than its factorization.

11013331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883271 (or 2883269 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11013331220 its reverse (2213331011), we get a palindrome (13226662231).

The spelling of 11013331220 in words is "eleven billion, thirteen million, three hundred thirty-one thousand, two hundred twenty".