201020233220 has 48 divisors (see below), whose sum is σ = 455686076160. Its totient is φ = 74259943296.

The previous prime is 201020233177. The next prime is 201020233229. The reversal of 201020233220 is 22332020102.

It is not an unprimeable number, because it can be changed into a prime (201020233229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7521152 + ... + 7547831.

It is an arithmetic number, because the mean of its divisors is an integer number (9493459920).

Almost surely, 2^201020233220 is an apocalyptic number.

201020233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020233220 is an abundant number, since it is smaller than the sum of its proper divisors (254665842940).

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

201020233220 is a wasteful number, since it uses less digits than its factorization.

201020233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15069044 (or 15069042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 201020233220 its reverse (22332020102), we get a palindrome (223352253322).

The spelling of 201020233220 in words is "two hundred one billion, twenty million, two hundred thirty-three thousand, two hundred twenty".