201020222 has 32 divisors (see below), whose sum is σ = 333849600. Its totient is φ = 90199008.

The previous prime is 201020201. The next prime is 201020233. The reversal of 201020222 is 222020102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218279 + ... + 219197.

It is an arithmetic number, because the mean of its divisors is an integer number (10432800).

Almost surely, 2^201020222 is an apocalyptic number.

201020222 is a deficient number, since it is larger than the sum of its proper divisors (132829378).

201020222 is a wasteful number, since it uses less digits than its factorization.

201020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 201020222 is about 14178.1600357733. The cubic root of 201020222 is about 585.7962440083.

Adding to 201020222 its reverse (222020102), we get a palindrome (423040324).

The spelling of 201020222 in words is "two hundred one million, twenty thousand, two hundred twenty-two".