201020021122102 has 16 divisors (see below), whose sum is σ = 371113885148832. Its totient is φ = 79524403960320.

The previous prime is 201020021122051. The next prime is 201020021122111. The reversal of 201020021122102 is 201221120020102.

It is a happy number.

It is a congruent number.

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, 552252805099 + ... + 552252805462.

It is an arithmetic number, because the mean of its divisors is an integer number (23194617821802).

Almost surely, 2^{201020021122102} is an apocalyptic number.

201020021122102 is a deficient number, since it is larger than the sum of its proper divisors (170093864026730).

201020021122102 is a wasteful number, since it uses less digits than its factorization.

201020021122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104505610583.

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

Adding to 201020021122102 its reverse (201221120020102), we get a palindrome (402241141142204).

The spelling of 201020021122102 in words is "two hundred one trillion, twenty billion, twenty-one million, one hundred twenty-two thousand, one hundred two".