201020222102120 has 16 divisors (see below), whose sum is σ = 452295499729860. Its totient is φ = 80408088840832.

The previous prime is 201020222102083. The next prime is 201020222102177. The reversal of 201020222102120 is 21201222020102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 193810556755396 + 7209665346724 = 13921586^2 + 2685082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512752776237 + ... + 2512752776316.

Almost surely, 2^{201020222102120} is an apocalyptic number.

201020222102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020222102120 is an abundant number, since it is smaller than the sum of its proper divisors (251275277627740).

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

201020222102120 is a wasteful number, since it uses less digits than its factorization.

201020222102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025505552564 (or 5025505552560 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201020222102120 its reverse (21201222020102), we get a palindrome (222221444122222).

The spelling of 201020222102120 in words is "two hundred one trillion, twenty billion, two hundred twenty-two million, one hundred two thousand, one hundred twenty".