201110220020220 has 48 divisors (see below), whose sum is σ = 643552704066048. Its totient is φ = 45968050290240.

The previous prime is 201110220020209. The next prime is 201110220020231. The reversal of 201110220020220 is 22020022011102.

It is an interprime number because it is at equal distance from previous prime (201110220020209) and next prime (201110220020231).

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 201110220020220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239416928176 + ... + 239416929015.

It is an arithmetic number, because the mean of its divisors is an integer number (13407348001376).

Almost surely, 2^{201110220020220} is an apocalyptic number.

201110220020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201110220020220 is an abundant number, since it is smaller than the sum of its proper divisors (442442484045828).

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

201110220020220 is a wasteful number, since it uses less digits than its factorization.

201110220020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478833857210 (or 478833857208 counting only the distinct ones).

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

Adding to 201110220020220 its reverse (22020022011102), we get a palindrome (223130242031322).

The spelling of 201110220020220 in words is "two hundred one trillion, one hundred ten billion, two hundred twenty million, twenty thousand, two hundred twenty".