201100033220 has 12 divisors (see below), whose sum is σ = 422310069804. Its totient is φ = 80440013280.

The previous prime is 201100033207. The next prime is 201100033273. The reversal of 201100033220 is 22330001102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33054148864 + 168045884356 = 181808^2 + 409934^2 .

It is a super-2 number, since 2×201100033220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201100033195 and 201100033204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5027500811 + ... + 5027500850.

It is an arithmetic number, because the mean of its divisors is an integer number (35192505817).

Almost surely, 2^201100033220 is an apocalyptic number.

201100033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201100033220 is an abundant number, since it is smaller than the sum of its proper divisors (221210036584).

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

201100033220 is a wasteful number, since it uses less digits than its factorization.

201100033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055001670 (or 10055001668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 201100033220 its reverse (22330001102), we get a palindrome (223430034322).

The spelling of 201100033220 in words is "two hundred one billion, one hundred million, thirty-three thousand, two hundred twenty".