201221002001202 has 32 divisors (see below), whose sum is σ = 407628496958400. Its totient is φ = 66214775263680.

The previous prime is 201221002001191. The next prime is 201221002001203. The reversal of 201221002001202 is 202100200122102.

It is not an unprimeable number, because it can be changed into a prime (201221002001203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690281949 + ... + 690573392.

It is an arithmetic number, because the mean of its divisors is an integer number (12738390529950).

Almost surely, 2^{201221002001202} is an apocalyptic number.

201221002001202 is an abundant number, since it is smaller than the sum of its proper divisors (206407494957198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201221002001202 is a wasteful number, since it uses less digits than its factorization.

201221002001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380855658.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201221002001202 its reverse (202100200122102), we get a palindrome (403321202123304).

The spelling of 201221002001202 in words is "two hundred one trillion, two hundred twenty-one billion, two million, one thousand, two hundred two".