201222772 has 12 divisors (see below), whose sum is σ = 353413060. Its totient is φ = 100247616.

The previous prime is 201222739. The next prime is 201222773. The reversal of 201222772 is 277222102.

201222772 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 73170916 + 128051856 = 8554^2 + 11316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89697 + ... + 91912.

Almost surely, 2^201222772 is an apocalyptic number.

It is an amenable number.

201222772 is a deficient number, since it is larger than the sum of its proper divisors (152190288).

201222772 is a wasteful number, since it uses less digits than its factorization.

201222772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181890 (or 181888 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 201222772 is about 14185.3012657469. The cubic root of 201222772 is about 585.9929293606.

Adding to 201222772 its reverse (277222102), we get a palindrome (478444874).

The spelling of 201222772 in words is "two hundred one million, two hundred twenty-two thousand, seven hundred seventy-two".