11365442220 has 48 divisors (see below), whose sum is σ = 34716261888. Its totient is φ = 2755258560.

The previous prime is 11365442219. The next prime is 11365442233. The reversal of 11365442220 is 2224456311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8609524 + ... + 8610843.

It is an arithmetic number, because the mean of its divisors is an integer number (723255456).

Almost surely, 2^11365442220 is an apocalyptic number.

11365442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11365442220 is an abundant number, since it is smaller than the sum of its proper divisors (23350819668).

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

11365442220 is a wasteful number, since it uses less digits than its factorization.

11365442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17220390 (or 17220388 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 11365442220 its reverse (2224456311), we get a palindrome (13589898531).

The spelling of 11365442220 in words is "eleven billion, three hundred sixty-five million, four hundred forty-two thousand, two hundred twenty".