201135222 has 24 divisors (see below), whose sum is σ = 436756320. Its totient is φ = 66896880.

The previous prime is 201135203. The next prime is 201135229. The reversal of 201135222 is 222531102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201135195 and 201135204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201135229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3822 + ... + 20417.

It is an arithmetic number, because the mean of its divisors is an integer number (18198180).

Almost surely, 2^201135222 is an apocalyptic number.

201135222 is an abundant number, since it is smaller than the sum of its proper divisors (235621098).

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

201135222 is a wasteful number, since it uses less digits than its factorization.

201135222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24708 (or 24705 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201135222 is about 14182.2149892039. The cubic root of 201135222 is about 585.9079304929.

Adding to 201135222 its reverse (222531102), we get a palindrome (423666324).

The spelling of 201135222 in words is "two hundred one million, one hundred thirty-five thousand, two hundred twenty-two".