201222211210 has 16 divisors (see below), whose sum is σ = 371034126792. Its totient is φ = 78525740800.

The previous prime is 201222211187. The next prime is 201222211213. The reversal of 201222211210 is 12112222102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 147499779249 + 53722431961 = 384057^2 + 231781^2 .

It is not an unprimeable number, because it can be changed into a prime (201222211213) 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, 245392531 + ... + 245393350.

Almost surely, 2^201222211210 is an apocalyptic number.

201222211210 is a deficient number, since it is larger than the sum of its proper divisors (169811915582).

201222211210 is a wasteful number, since it uses less digits than its factorization.

201222211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490785929.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201222211210 its reverse (12112222102), we get a palindrome (213334433312).

The spelling of 201222211210 in words is "two hundred one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred ten".