110201220020 has 24 divisors (see below), whose sum is σ = 231466771368. Its totient is φ = 44072067200.

The previous prime is 110201220013. The next prime is 110201220029. The reversal of 110201220020 is 20022102011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53806369444 + 56394850576 = 231962^2 + 237476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 110201219983 and 110201220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110201220029) 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, 418451 + ... + 628890.

It is an arithmetic number, because the mean of its divisors is an integer number (9644448807).

Almost surely, 2^110201220020 is an apocalyptic number.

110201220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110201220020 is an abundant number, since it is smaller than the sum of its proper divisors (121265551348).

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

110201220020 is a wasteful number, since it uses less digits than its factorization.

110201220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052611 (or 1052609 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 110201220020 its reverse (20022102011), we get a palindrome (130223322031).

The spelling of 110201220020 in words is "one hundred ten billion, two hundred one million, two hundred twenty thousand, twenty".