110203311121220 has 24 divisors (see below), whose sum is σ = 231430594757208. Its totient is φ = 44080630848000.

The previous prime is 110203311121193. The next prime is 110203311121261. The reversal of 110203311121220 is 22121113302011.

It can be written as a sum of positive squares in 4 ways, for example, as 12119324363524 + 98083986757696 = 3481282^2 + 9903736^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 110203311121192 and 110203311121201.

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, 42046211 + ... + 44590250.

It is an arithmetic number, because the mean of its divisors is an integer number (9642941448217).

Almost surely, 2^{110203311121220} is an apocalyptic number.

110203311121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110203311121220 is an abundant number, since it is smaller than the sum of its proper divisors (121227283635988).

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

110203311121220 is a wasteful number, since it uses less digits than its factorization.

110203311121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86700071 (or 86700069 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 110203311121220 its reverse (22121113302011), we get a palindrome (132324424423231).

The spelling of 110203311121220 in words is "one hundred ten trillion, two hundred three billion, three hundred eleven million, one hundred twenty-one thousand, two hundred twenty".