201220320133 has 12 divisors (see below), whose sum is σ = 240399328288. Its totient is φ = 164975663160.

The previous prime is 201220320127. The next prime is 201220320137. The reversal of 201220320133 is 331023022102.

It is not a de Polignac number, because 201220320133 - 2⁵ = 201220320101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201220320133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220320137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27166203 + ... + 27173608.

Almost surely, 2^201220320133 is an apocalyptic number.

201220320133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

201220320133 is a deficient number, since it is larger than the sum of its proper divisors (39179008155).

201220320133 is an equidigital number, since it uses as much as digits as its factorization.

201220320133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54339864 (or 54339841 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201220320133 its reverse (331023022102), we get a palindrome (532243342235).

The spelling of 201220320133 in words is "two hundred one billion, two hundred twenty million, three hundred twenty thousand, one hundred thirty-three".