201222122210 has 16 divisors (see below), whose sum is σ = 362206827576. Its totient is φ = 80487291648.

The previous prime is 201222122159. The next prime is 201222122221. The reversal of 201222122210 is 12221222102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 200044191169 + 1177931041 = 447263^2 + 34321^2 .

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, 449594 + ... + 777546.

Almost surely, 2^201222122210 is an apocalyptic number.

201222122210 is a deficient number, since it is larger than the sum of its proper divisors (160984705366).

201222122210 is a wasteful number, since it uses less digits than its factorization.

201222122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389317.

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

Adding to 201222122210 its reverse (12221222102), we get a palindrome (213443344312).

The spelling of 201222122210 in words is "two hundred one billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred ten".