110221101220 has 24 divisors (see below), whose sum is σ = 231470676864. Its totient is φ = 44087228256.

The previous prime is 110221101173. The next prime is 110221101223. The reversal of 110221101220 is 22101122011.

It is a self number, because there is not a number n which added to its sum of digits gives 110221101220.

It is not an unprimeable number, because it can be changed into a prime (110221101223) 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, 1167007 + ... + 1257913.

It is an arithmetic number, because the mean of its divisors is an integer number (9644611536).

Almost surely, 2^110221101220 is an apocalyptic number.

110221101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110221101220 is an abundant number, since it is smaller than the sum of its proper divisors (121249575644).

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

110221101220 is a wasteful number, since it uses less digits than its factorization.

110221101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151539 (or 151537 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110221101220 its reverse (22101122011), we get a palindrome (132322223231).

The spelling of 110221101220 in words is "one hundred ten billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty".