201184220 has 24 divisors (see below), whose sum is σ = 440856864. Its totient is φ = 76974656.

The previous prime is 201184219. The next prime is 201184259. The reversal of 201184220 is 22481102.

It is a happy number.

201184220 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 201184192 and 201184201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218219 + ... + 219138.

It is an arithmetic number, because the mean of its divisors is an integer number (18369036).

Almost surely, 2^201184220 is an apocalyptic number.

201184220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201184220 is an abundant number, since it is smaller than the sum of its proper divisors (239672644).

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

201184220 is a wasteful number, since it uses less digits than its factorization.

201184220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437389 (or 437387 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 201184220 is about 14183.9423292680. The cubic root of 201184220 is about 585.9555037715.

The spelling of 201184220 in words is "two hundred one million, one hundred eighty-four thousand, two hundred twenty".