201210122121202 has 16 divisors (see below), whose sum is σ = 302468930628480. Its totient is φ = 100387147945392.

The previous prime is 201210122121193. The next prime is 201210122121247. The reversal of 201210122121202 is 202121221012102.

It is a self number, because there is not a number n which added to its sum of digits gives 201210122121202.

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, 172450008 + ... + 173612860.

It is an arithmetic number, because the mean of its divisors is an integer number (18904308164280).

Almost surely, 2^{201210122121202} is an apocalyptic number.

201210122121202 is a deficient number, since it is larger than the sum of its proper divisors (101258808507278).

201210122121202 is a wasteful number, since it uses less digits than its factorization.

201210122121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350177.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201210122121202 its reverse (202121221012102), we get a palindrome (403331343133304).

The spelling of 201210122121202 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred two".