110401221220 has 24 divisors (see below), whose sum is σ = 231884340408. Its totient is φ = 44152531200.

The previous prime is 110401221197. The next prime is 110401221241. The reversal of 110401221220 is 22122104011.

It can be written as a sum of positive squares in 4 ways, for example, as 7171684 + 110394049536 = 2678^2 + 332256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 110401221194 and 110401221203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382921 + ... + 606160.

It is an arithmetic number, because the mean of its divisors is an integer number (9661847517).

Almost surely, 2^110401221220 is an apocalyptic number.

110401221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110401221220 is an abundant number, since it is smaller than the sum of its proper divisors (121483119188).

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

110401221220 is a wasteful number, since it uses less digits than its factorization.

110401221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994671 (or 994669 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 110401221220 its reverse (22122104011), we get a palindrome (132523325231).

The spelling of 110401221220 in words is "one hundred ten billion, four hundred one million, two hundred twenty-one thousand, two hundred twenty".