201222056 has 32 divisors (see below), whose sum is σ = 432747840. Its totient is φ = 85926528.

The previous prime is 201222053. The next prime is 201222067. The reversal of 201222056 is 650222102.

It is not an unprimeable number, because it can be changed into a prime (201222053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9500 + ... + 22196.

It is an arithmetic number, because the mean of its divisors is an integer number (13523370).

Almost surely, 2^201222056 is an apocalyptic number.

It is an amenable number.

201222056 is an abundant number, since it is smaller than the sum of its proper divisors (231525784).

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

201222056 is a wasteful number, since it uses less digits than its factorization.

201222056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993 (or 12989 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201222056 is about 14185.2760283330. The cubic root of 201222056 is about 585.9922343242.

Adding to 201222056 its reverse (650222102), we get a palindrome (851444158).

The spelling of 201222056 in words is "two hundred one million, two hundred twenty-two thousand, fifty-six".