201020220102 has 48 divisors (see below), whose sum is σ = 435866296320. Its totient is φ = 61778392416.

The previous prime is 201020220101. The next prime is 201020220143. The reversal of 201020220102 is 201022020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020220101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 732603 + ... + 968889.

It is an arithmetic number, because the mean of its divisors is an integer number (9080547840).

Almost surely, 2^201020220102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201020220102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217933148160).

201020220102 is an abundant number, since it is smaller than the sum of its proper divisors (234846076218).

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

201020220102 is a wasteful number, since it uses less digits than its factorization.

201020220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237157 (or 237144 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201020220102 its reverse (201022020102), we get a palindrome (402042240204).

The spelling of 201020220102 in words is "two hundred one billion, twenty million, two hundred twenty thousand, one hundred two".