201100221230220 has 120 divisors (see below), whose sum is σ = 679386445469424. Its totient is φ = 49501592913024.

The previous prime is 201100221230177. The next prime is 201100221230231. The reversal of 201100221230220 is 22032122001102.

201100221230220 is a `hidden beast` number, since 20 + 1 + 100 + 221 + 2 + 302 + 20 = 666.

201100221230220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201100221230193 and 201100221230202.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4774438134 + ... + 4774480253.

Almost surely, 2^{201100221230220} is an apocalyptic number.

201100221230220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100221230220 is an abundant number, since it is smaller than the sum of its proper divisors (478286224239204).

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

201100221230220 is a wasteful number, since it uses less digits than its factorization.

201100221230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9548918421 (or 9548918410 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 201100221230220 its reverse (22032122001102), we get a palindrome (223132343231322).

The spelling of 201100221230220 in words is "two hundred one trillion, one hundred billion, two hundred twenty-one million, two hundred thirty thousand, two hundred twenty".