201234220 has 24 divisors (see below), whose sum is σ = 461009808. Its totient is φ = 73176000.

The previous prime is 201234197. The next prime is 201234233. The reversal of 201234220 is 22432102.

201234220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201234220² = 80990422598016800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201234194 and 201234203.

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, 457131 + ... + 457570.

It is an arithmetic number, because the mean of its divisors is an integer number (19208742).

Almost surely, 2^201234220 is an apocalyptic number.

201234220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201234220 is an abundant number, since it is smaller than the sum of its proper divisors (259775588).

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

201234220 is a wasteful number, since it uses less digits than its factorization.

201234220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914721 (or 914719 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 201234220 is about 14185.7047762880. The cubic root of 201234220 is about 586.0040419528.

Adding to 201234220 its reverse (22432102), we get a palindrome (223666322).

The spelling of 201234220 in words is "two hundred one million, two hundred thirty-four thousand, two hundred twenty".