110221220220 has 24 divisors (see below), whose sum is σ = 308619416784. Its totient is φ = 29392325376.

The previous prime is 110221220209. The next prime is 110221220237. The reversal of 110221220220 is 22022122011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 110221220220.

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, 918510109 + ... + 918510228.

It is an arithmetic number, because the mean of its divisors is an integer number (12859142366).

Almost surely, 2^110221220220 is an apocalyptic number.

110221220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110221220220 is an abundant number, since it is smaller than the sum of its proper divisors (198398196564).

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

110221220220 is a wasteful number, since it uses less digits than its factorization.

110221220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837020349 (or 1837020347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 110221220220 its reverse (22022122011), we get a palindrome (132243342231).

The spelling of 110221220220 in words is "one hundred ten billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty".