201201222122 has 16 divisors (see below), whose sum is σ = 309195110952. Its totient is φ = 98157159360.

The previous prime is 201201222113. The next prime is 201201222193. The reversal of 201201222122 is 221222102102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 121111656121 + 80089566001 = 348011^2 + 283001^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201201222122.

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, 5224253 + ... + 5262624.

Almost surely, 2^201201222122 is an apocalyptic number.

201201222122 is a deficient number, since it is larger than the sum of its proper divisors (107993888830).

201201222122 is a wasteful number, since it uses less digits than its factorization.

201201222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10487113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201201222122 its reverse (221222102102), we get a palindrome (422423324224).

The spelling of 201201222122 in words is "two hundred one billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty-two".