201210120220210 has 32 divisors (see below), whose sum is σ = 374415609783600. Its totient is φ = 77800646154240.

The previous prime is 201210120220183. The next prime is 201210120220271. The reversal of 201210120220210 is 12022021012102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 55641141571401 + 145568978648809 = 7459299^2 + 12065197^2 .

It is a super-2 number, since 2×201210120220210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2251131415 + ... + 2251220794.

Almost surely, 2^{201210120220210} is an apocalyptic number.

201210120220210 is a deficient number, since it is larger than the sum of its proper divisors (173205489563390).

201210120220210 is a wasteful number, since it uses less digits than its factorization.

201210120220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502352366.

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

Adding to 201210120220210 its reverse (12022021012102), we get a palindrome (213232141232312).

The spelling of 201210120220210 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty million, two hundred twenty thousand, two hundred ten".