201020211102 has 16 divisors (see below), whose sum is σ = 402046500240. Its totient is φ = 67005724032.

The previous prime is 201020211089. The next prime is 201020211103. The reversal of 201020211102 is 201112020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020211103) 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, 255238 + ... + 683510.

It is an arithmetic number, because the mean of its divisors is an integer number (25127906265).

Almost surely, 2^201020211102 is an apocalyptic number.

201020211102 is an abundant number, since it is smaller than the sum of its proper divisors (201026289138).

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

201020211102 is a wasteful number, since it uses less digits than its factorization.

201020211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506507.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201020211102 its reverse (201112020102), we get a palindrome (402132231204).

The spelling of 201020211102 in words is "two hundred one billion, twenty million, two hundred eleven thousand, one hundred two".